Hmong
English French German Portuguese Spanish Russian Japanese Korean Arabic Irish Greek Turkish Italian Danish Romanian Indonesian Czech Afrikaans Swedish Polish Basque Catalan Esperanto Hindi Lao Albanian Amharic Armenian Azerbaijani Belarusian Bengali Bosnian Bulgarian Cebuano Chichewa Corsican Croatian Dutch Estonian Filipino Finnish Frisian Galician Georgian Gujarati Haitian Hausa Hawaiian Hebrew Hmong Hungarian Icelandic Igbo Javanese Kannada Kazakh Khmer Kurdish Kyrgyz Latin Latvian Lithuanian Luxembou.. Macedonian Malagasy Malay Malayalam Maltese Maori Marathi Mongolian Burmese Nepali Norwegian Pashto Persian Punjabi Serbian Sesotho Sinhala Slovak Slovenian Somali Samoan Scots Gaelic Shona Sindhi Sundanese Swahili Tajik Tamil Telugu Thai Ukrainian Urdu Uzbek Vietnamese Welsh Xhosa Yiddish Yoruba Zulu Kinyarwanda Tatar Oriya Turkmen Uyghur
Leave Your Message
*Name Cannot be empty!
* Enter product details such as size, color,materials etc. and other specific requirements to receive an accurate quote. Cannot be empty

Kev cai Mylar Bags

Kev loj hlob ntawm cov lag luam hauv kev lag luam cannabis tau siv lub zog ntawm cov txheej txheem ntim niaj hnub, kev lag luam tsis tu ncua, cov kev xaiv kim heev rau cov khoom ntim khoom ntim tau yooj yim.Custom Mylar Bags pab ntau yam kev siv, ua raws li cov kev xaiv zoo tshaj plaws rau kev ntim khoom. ntawm cov khoom xws li nrhiav-tom qab cannabis cov khoom, ntxias cov khoom noj, cov khoom noj khoom haus zoo nkauj, cov taum kas fes, cov ncuav qab zib zoo siab, kua dej thiab cov tshuaj ntsuab nplua nuj ntawm lwm tus.

Tsis txhob ncua ntxiv - tso koj daim ntawv xaj tam sim no rau kev cai-logo imprinted Mylar hnab thiab puag seamless xa mus rau koj lub qhov rooj!

  • Kev xa khoom sai & Kev Pabcuam tsim qauv pub dawb
  • Yam tsawg kawg nkaus Order Quantity: 500pcs ib qhov loj me, ib tus qauv tsim
  • Cov khoom siv qib siab ISO-certified
mylar tuag txiav hnab (17) 4dr

cov khoom tshwj xeeb

Peb ua dab tsi

Raws li koj xav tau kev lag luam, koj tuaj yeem yuav peb cov hnab Mylar kev cai hauv ntau. Txoj kev yuav khoom no tso cai rau txo qis tus nqi ntawm ib chav tsev thaum ua kom muaj qhov tsim nyog thiab zoo tsim rau koj. Peb lub Hoobkas-tus nqi yog qhov tshwj xeeb rau txhua qhov kev yuav khoom.

Tau txais kev txhawb nqa uas tsis muaj qhov sib piv tau muab los ntawm peb pab pawg kws tshaj lij uas paub tseeb tias koj tsis tau txais dab tsi tab sis ua tau zoo thaum nws los tsim ib lub hnab tiag tiag tsim kom haum rau koj tus kheej lub npe xav tau. Peb cov kws tshaj lij yuav txhais cov tswv yim zoo tshaj plaws uas xav ua kom dhau los ntawm cov khoom muag!
Ua lag luam koj tus kheej zoo dua nrog cov hnub nyoog tshiab kev cai mylar hnab ntim khoom lag luam wholesale los ntawm peb - ​​kev ntseeg siab los ntawm cov chaw tsim khoom ntseeg siab!

mylar tuag txiav hnab (86)tb4
01
08/05/2020

Kev cai 3.5g mylar hnab

Kev luag yog ib txoj hauv kev zoo los kos cov txheej mecenas ntawm lub pas dej los yog qhov yooj yim.
saib ntxiv
mylar tuag txiav hnab (8)ga7
01
08/05/2020

Kev cai me nyuam resistant mylar hnab

Kev luag yog ib txoj hauv kev zoo los kos cov txheej mecenas ntawm lub pas dej los yog qhov yooj yim.
saib ntxiv
mylar tuag txiav hnab (54)1jm
01
08/05/2020

Kev cai holographic mylar hnab

Kev luag yog ib txoj hauv kev zoo los kos cov txheej mecenas ntawm lub pas dej los yog qhov yooj yim.
saib ntxiv
mylar tuag txiav hnab (2)a3t
01
08/05/2020

Kev cai zoo li tus mylar hnab




Kev luag yog ib txoj hauv kev zoo los kos cov txheej mecenas ntawm lub pas dej los yog qhov yooj yim.
saib ntxiv
mylar tuag txiav hnab (1)lz8
01
08/05/2020

mini mylar hnab

Kev luag yog ib txoj hauv kev zoo los kos cov txheej mecenas ntawm lub pas dej los yog qhov yooj yim.
saib ntxiv
mylar tuag txiav hnab (49)cj5
01
08/05/2020

customized mylar hnab nrog qhov rais

Kev luag yog ib txoj hauv kev zoo los kos cov txheej mecenas ntawm lub pas dej los yog qhov yooj yim.
saib ntxiv
weed-bag-1 (1)gsa
01
08/05/2020

biodegradable mylar hnab

Kev luag yog ib txoj hauv kev zoo los kos cov txheej mecenas ntawm lub pas dej los yog qhov yooj yim.
saib ntxiv
0102 ib0304 ib

Peb tuaj yeem muab tau dab tsi

mylar tuag txiav hnab (13)xlv
01

Custom Shapes kom sawv tawm

7 Lub Ib Hlis 2019
Hais lus zoo rau kev ntim khoom nrog peb cov khoom siv tuag-txiav kev cai zoo li Mylar hnab. Tshwj xeeb tsim kom haum rau koj cov khoom, cov duab tshiab no yuav ua rau koj cov khoom tam sim no paub.
mylar tuag txiav hnab (16)o9q
02 ib

Safe & Robust Mylar Khoom

7 Lub Ib Hlis 2019
Mylar yog cov khoom ntim muaj zog thiab ntau yam khoom siv uas muaj kev txhim kho ruaj khov vim nws tsis kam mus rautearing thiab punctures.Mylar lub peev xwm nyob rau hauv odor retention proves tseem ceeb nyob rau hauv khaws cia cov khoom scents los ntawm sab nraud intrusion thaum ua kom cov ntxhiab tsw sab hauv - Ib qho tseem ceeb feature nyob rau hauv cov zaub mov los yog tshuaj tsw qab ntim sectors.
mylar_stand_up_pouch__(26) (1)33y
03

Zoo heev Smell Proof Design

7 Lub Ib Hlis 2019
Nrog peb cov khoom pov thawj tsis hnov ​​​​tsw mylar hnab, tswj cov khoom tshiab thiab khaws cov ntxhiab tsw tsis zoo ntawm koj cov neeg siv khoom - txhim kho qhov kev paub tsis meej! Nws yog ib txoj hauv kev zoo tshaj plaws ntawm kev khaws cov zaub mov kom ntev dua.
mylar tuag txiav hnab (28)8b1
04 ib

Customized Logo rau Strong Branding Identity

7 Lub Ib Hlis 2019
Cov hnab ntim khoom qab zib nrog lub logo yog txoj hauv kev zoo los tsim kev paub txog koj hom thiab cov khoom. Cov qauv tsim ntxim nyiam no yog khi kom tig taub hau! Peb nyob twj ywm ntawm lub hauv ntej kom ntseeg tau tias peb cov neeg siv khoom tsis yog nyob ua ntej ntawm cov ncauj lus tab sis kuj qhia lawv tus kheej hauv kev lag luam zoo siab no.

Qhov Zoo Tshaj Plaws Mylar Hnab rau Pib Koj Lub Lag Luam

Lub tswv yim ntim cov kev daws teeb meem haum rau koj cov khoom, txawm tias nws yog Cannabis, CBD, lossis lwm yam khoom tshwj xeeb uas koj ua lag luam! Ua ib lub cim npe txawv nrog Custom Mylar Bags.

Tiv tauj peb

Daim ntawv thov thiab hom lag luam tsim nyog

659377 wb

Khoom noj khoom haus Preservation & Cia
659377f8 ua

Tshuaj Kev Lag Luam Kev Nyab Xeeb Ntim
65937fm9 wb

Khoom plig & Promotional khoom ntim
6 5937 tzs

Cosmetic Industry Specialist Ntim
6593 7 tzf

Electronics Kev Lag Luam Antistatic Ntim
659377f ib

Ua liaj ua teb Seed Storage
65420 wb
6 5420b

Kev tsim khoom

Los ntawm Tswv Yim rau Kev Xa Khoom

  • 1

    Requirement Booking

    Thaum tau txais ib qho kev txiav txim, peb sib txuas lus nrog cov neeg siv khoom kom nkag siab txog lawv cov khoom xav tau tshwj xeeb. Qhov no suav nrog lub hnab ntim, qhov loj me, tsim logo, thiab lwm yam ntxiv uas lawv xav tau.

  • 2

    Draft Designing

    Peb pab neeg tsim khoom ces kos tawm ib daim qauv raws li cov neeg siv khoom tshwj xeeb. Qhov no tso cai rau tus neeg siv khoom pom cov khoom kawg thiab ua qhov kev hloov kho tsim nyog ua ntej pib tsim khoom.

  • 3

    Kev Npaj & Txiav

    Cov khoom zoo Mylar yog khaws thiab txiav rau hauv cov duab raws li cov neeg siv khoom xav tau siv lub tshuab txiav tshuab ua kom ntseeg tau siab precision thiab uniformity.

  • 4

    Printing & Tshuaj xyuas

    Cov hnab yuav luam tawm raws li cov qauv tsim raws li kev soj ntsuam kom zoo. Peb siv cov inks muaj kev nyab xeeb uas tsim cov xim vibrant thaum tswj cov zaub mov qib kev nyab xeeb.

  • 5

    Kev Tswj Xyuas Zoo

    Thaum kawg, txhua lub hnab Mylar tau ua tib zoo tshuaj xyuas kom tswj tau peb cov khoom lag luam siab. Peb pab neeg ua kom tsis muaj kev cuam tshuam txog kev ua haujlwm ntawm kev ncaj ncees thiab tsim precision ntawm koj lub hnab ntim khoom.

  • 6

    Ntim & Shipping

    Thaum dhau qhov kev kuaj xyuas zoo, cov hnab ntim Mylar kev cai yog tom qab ntawd ntim khoom ruaj ntseg rau kev xa khoom. Kev saib xyuas tshwj xeeb yog ua kom ntseeg tau tias lub ntim tiv thaiv cov khoom thaum lub sijhawm thauj mus los thiab lawv tuaj txog ntawm lawv qhov chaw nyob hauv qhov chaw zoo.

mylar tuag txiav hnab (12)577

CUSTOMIZATION ua rau koj cov khoom ci ntsa iab

Ntau yam hauv Qhov Loj: Peb muab ntau yam kev xaiv loj los ua kom haum rau cov kev xav tau tshwj xeeb ntawm koj cov khoom thiab kev siv.
Inventive Shapes : Sawv lub hnab? Lub hnab txhawb nqa tus kheej? Los yog lwm yam kev xav tshwj xeeb hauv siab? Peb tuaj yeem txiav-ua rau koj hauv yim xim xaiv thiab 6+ tus qauv lub hnab loj.
Xim xaiv : ntshiab, dawb, nyiaj los yog khoom siv tes ua xim, PMS pan-tone xim thiab digital CMYK luam ntawv xaiv ....... peb muab tag nrho. Nco ntsoov tias cov khoom thaiv tsis muaj kev txhawj xeeb nrog cov xim zaj duab xis.

mylar tuag txiav hnab (88) 88w

CUSTOMIZATION ua rau koj cov khoom ci ntsa iab

Qhov no tsuas yog siv rau kev siv thiab qhov loj me tuaj yeem ua kom zoo raws li koj cov khoom tshwj xeeb, cov duab, qhov hnyav thiab lwm yam.

Khoom Muaj Peev Xwm Hnab Loj (W x H + D)
3.5 g yog ' 3.62 "x 5" x 2"
7g ua 4 "x 6.69" + 2.36"
14g ua 5" x 8" + 2.75"
28g ua 6" x 9.25" x 3"

mylar_s7v 3

TSHIAB! tsev neeg-loj mylar hnab

Peb tshwj xeeb hauv kev muab cov hnab me me rau tsev neeg los muab ib qhomuaj peev xwm dua , muaj peev xwm tuav cov ntsiab lus txaus rau kev siv txuas ntxiv. Cov yam ntxwv no muab cov txiaj ntsig zoo rau cov neeg siv khoom txawj ntse, uas nyiam cov khoom lag luam uas tsom rau tus nqi yam tsis muaj kev txi zoo.

Koj yuav pom lub hnab loj dua li qhov nruab nrab yog qhov zoo. Tus tsim ua tiav nws cov khoom hwm zoo los ntawm kev ua kom tau raws li cov kev xav tau ntawm cov neeg siv hnyav ib txwm muaj lossis qee zaus cov neeg haus luam yeeb, yog li txhawb nqa.rov yuav khoom.

mylar tuag txiav hnab (26) 4pl

CUSTOMIZATION ua rau koj cov khoom ci ntsa iab

Tsim & Luam Ntawv: Ua ke nrog cov tswv yim tsim thiab cov txheej txheem sib txawv, peb muab kev tshaj lij & hwm tsim thiab luam cov kev pabcuam.
Cov khoom xaiv: Peb cov ntaub ntawv sophisticated yog laminated multi-layer films nrog txawv zog ib txheej ie, luam ntawv txheej, barrier txheej thiab tshav kub-sealing txheej rau ntau yam functions uas tom kawg yuav muaj ob los yog ntau sub-layers raws li xav tau.

Xav paub ntau ntxiv txog kev xaiv cov khoom siv lub hnab sawv ntsug!

Qhov Zoo Tshaj Plaws Mylar Hnab rau Pib Koj Lub Lag Luam

Lub tswv yim ntim cov kev daws teeb meem haum rau koj cov khoom, txawm tias nws yog Cannabis, CBD, lossis lwm yam khoom tshwj xeeb uas koj ua lag luam! Ua ib lub cim npe txawv nrog Custom Mylar Bags.

Tiv tauj peb

Paub meej

Childproof zipper
01

Me Nyuam Pov Thawj

2018-07-16
Qhov txiaj ntsig tseem ceeb ntawm Cov Ntawv Pov Thawj Me Nyuam yog tias nws muab kev nyab xeeb ntxiv. Nyob rau hauv peb lub neej niaj hnub, cov menyuam yaus muaj kev xav paub ntau, thiab nws yog qhov muaj ntau rau lawv kom txaus siab rau lub hnab zoo li ntxim nyiam thiab sim qhib nws. Lub sijhawm no, cov ntaub ntawv pov thawj menyuam yaus tuaj rau hauv kev ua si tiv thaiv lawv los ntawm kev nkag mus rau cov khoom uas yuav muaj kev pheej hmoo.
mylar tuag txiav hnab (59)ke5
02 ib

Cim Tsim Tsim

2018-07-16
Rau cov neeg siv khoom uas xav kom lawv cov khoom lag luam sawv tawm ntawm cov plethora, peb muab tus kheej customization hauv cov duab tshwj xeeb. Ua tiav raws li cov neeg siv khoom xav tau rau lawv cov khoom muag.
mylar tuag txiav hnab (49)52f
03

Pob tshab Qhov rai Feature

2018-07-16
Txhua lub hnab tuaj nrog lub qhov rais pob tshab uas tso cai rau saib dab tsi nyob hauv ib pliag. Nws caters superbly rau cov neeg siv khoom xav tau cov ntaub ntawv thiab ua rau ntim ntau dua.
0102 ib03

Nqe Lus Nug ◢

  • Q.

    Cov khoom siv dab tsi uas koj siv los ua cov pob no?

  • Q.

    Koj puas tuaj yeem luam tawm raws li tus qauv kuv muab?

  • Q.

    Dab tsi ua rau koj lub hnab mylar kev cai txawv?

  • Q.

    Muaj pes tsawg txoj kev xaiv koj muab rau kev cai mylar hnab?

  • Q.

    Puas yog tus cwj mem siv hauv kev luam ntawv puas siv tau?

Nqe Lus Nug ◢

  • Q.

    Lub txee lub neej ntev npaum li cas nrog cov kev daws teeb meem no?

  • Q.

    Txhua tus nqi xa khoom ntau npaum li cas?

  • Q.

    Lub sij hawm txhuas feem ntau yog dab tsi?

  • Q.

    Kuv puas tuaj yeem tau txais ib daim duab kos rau ntawm txhua sab ntawm ntim?

  • Q.

    Kuv tuaj yeem tau txais cov qauv dawb?

    A.

    Yog lawm, cov qauv hauv Tshuag muaj, tab sis kev thauj khoom xav tau.

COV NTAUB NTAWV QHIA TXOG MYLAR POUCH packaging

Txais tos rau peb cov lus qhia dav dav hauv ntiaj teb ntawm Mylar hnab ntim khoom! Raws li lub tuam txhab ua lag luam ntim khoom lag luam, peb zoo siab los qhia peb cov kev txawj ntse thiab kev nkag siab ntawm qhov kev daws teeb meem tshiab thiab ntau yam ntim. Txawm hais tias koj yog ib tus kws tshaj lij hauv kev lag luam ntim khoom lossis tsuas yog xav paub txog qhov tseeb tiam sis thiab thev naus laus zis, qhov blog no yog tsim los muab rau koj.tag nrho cov ntaub ntawv koj xav taukom paub txiav txim siab txog koj cov kev xav tau ntim khoom.

Q1: Dab tsi Teem Sib Txawv Metallized Polyester (Mylar) Pouches lossis Hnab?

Mylar Bags sawv ntsug txawv ntawm hiav txwv ntawm lwm lub ntim vim lawv txoj cai lij choj - Mylar, tshwj xeeb ntawm polyester zaj duab xis. Qhov kev txiav txim siab no txhawb nqa cov hnab no nrog cov khoom siv tshuaj lom neeg thiab lub cev, ua rau lawv mus rau kev ua kom muaj kev nyab xeeb ntawm cov khoom.
Ua kom tsawg permeable rau gases piv rau cov ntim yas li niaj zaus ua rau nws muaj kev ntseeg siab rau kev tiv thaiv cov ntsiab lus hauv. Yog li ntawd, Metallized Polyester hnab thiab hnab tau txais txiaj ntsig zoo, sai sai ua qhov tseem ceeb hauv qee qhov kev lag luam.
Lawv tsim yog nyob deb ntawm kev ua ib daim ntawv los yog zaj duab xis ntxig rau cov khoom. Lawv khav theeb qhov muaj txiaj ntsig zoo tshaj plaws - muaj peev xwm ua tau molded rau hauv ntau yam duab thiab tsim raws li cov neeg siv khoom xav tau. Nrog rau cov yam ntxwv tshwj xeeb no ua ke nrog cov txiaj ntsig ntxiv uas lawv muab, nws tsis xav tias kev cai Mylar hnab tau tshwm sim los ua ib qho ntawm cov kev xaiv ntim khoom noj rau ntau hom khoom.

Q2: Ib puag ncig lub luag hauj lwm & Enduring Mylar Ntim Solutions

Kev hwm ib puag ncig kev daws teeb meem, peb lub hnab tshwj xeeb Mylar puag puag ncig eco-phooj ywg thiab tuaj yeem rov ua dua tshiab thaum ua lub luag haujlwm ntau yam. Ntawm XINDINGLI, peb txaus siab rau peb cov kev coj ua ntsuab thiab siv tsuas yog cov ntaub ntawv zoo tshaj plaws rau kev tsim CBD tus phooj ywg Mylar hnab hnab.
Lub zog tseem ceeb ntawm cov hnab ntim qib siab no yog qhov thaiv kev nyab xeeb uas lawv txhim kho kev tiv thaiv koj cov khoom muaj txiaj ntsig los ntawm kev cuam tshuam sab nraud. Zoo meej lub tshuab nqus tsev kaw, peb lub hnab kom pom kev nyab xeeb rau koj cov khoom. Txhawm rau kom haum raws li cov kev xav tau sib txawv, peb muab cov qauv zoo li kub-sealable thiab zip-lock variations hauv peb kab ntawm Mylar hnab.
Nyob rau hauv ib lub sij hawm hinged ntawm kev txhawb nqa eco-conscious teg num, nws tau txhawb kom pom cov lag luam nrhiav kev lag luam ntim cov kev daws teeb meem. Peb tus kheej digitally luam tawm Mylar hnab tsis yog tsuas yog txhawb koj lub hom phiaj xwb tab sis kuj tseem txhawb nqa kev txhawb nqa thoob ntiaj teb.

Q3: Tau txais txiaj ntsig los ntawm Customized Mylar Bags rau Koj Txoj Kev Loj Hlob

Ntau lub tuam txhab tau siv cov peev txheej thiab qhov zoo ntawm kev siv cov hnab Mylar tus kheej rau lawv cov ntim, vim muaj cov txiaj ntsig zoo uas cov hnab hloov pauv tam sim no tsuas yog muab kev tiv thaiv xwb.

1.Brand Recognition: Cov qauv tsim tsim pab koj lub logo sawv tawm, txhawb kev txheeb xyuas hom khoom yooj yim.
2.Sophisticated Saib: Kev ntim khoom tau txais txiaj ntsig ntawm cov neeg siv khoom yog li txhawb kev muag khoom.
3.Product Protection : Peb lub hnab ruaj khov tiv thaiv huab cua, noo noo, thiab lub teeb. Xaiv customization rau zoo meej haum thiab superior ntaub thaiv npog.
4.Packaging Appeal: Kev cai hues thiab tsim cov hlau nplaum nyiam cov neeg siv khoom tam sim.
5.Eco-consciousness: Ib feem loj ntawm peb lub hnab Mylar yog cov khoom siv rov ua dua tshiab thiab rov siv tau rov qab los ntawm peb txoj kev mob siab rau ib puag ncig kev noj qab haus huv.
6. Lub teeb thaiv: Impeccable hauv kev cuam tshuam kev puas tsuaj UV rays tau txais txiaj ntsig tshwj xeeb tshaj yog thaum ntim cov txuj lom lossis tshuaj
7.Regulatory Compliant & Safe Packaging Solution: Kev lag luam-tus qauv adherent Thaum catering rau cov khoom rhiab zoo li cannabis peb xyuas kom cov me nyuam-resistant ntim raws li txoj cai.
8. Kev xaiv pheej yig: Txawm hais tias cov khoom siv tshwj xeeb, cov khoom siv tiv thaiv no yog cov hnab tshos-phooj ywg!

Q4: Dab tsi ua rau peb qhov zoo tshaj plaws rau Kev Cai Mylar Pouches!

Peb txaus siab rau peb tus kheej ntawm kev xa cov kev cai zoo tshaj Mylar pouches uas sawv tawm hauv qhov zoo thiab kev hloov kho. Siv cov khoom zoo, cov khoom noj khoom haus thiab cov txheej txheem tsim khoom hauv lub xeev, peb xyuas kom peb cov hnab ntim khoom muaj kev tiv thaiv tsis sib haum thiab ua haujlwm ntev. Peb cov kev daws teeb meem, suav nrog qhov ntau thiab tsawg, cov duab, thiab cov yam ntxwv tshwj xeeb xws li cov zippers resealable thiab high-resolution printing, yog tsim los ua kom tau raws li koj cov kev xav tau ntim tshwj xeeb thaum txhim kho koj lub hom phiaj kev thov.

Peb qhov kev cog lus rau cov neeg siv khoom tshwj xeeb ua rau peb sib nrug. Los ntawm kev txhawb nqa tus kheej thiab lub sijhawm hloov pauv sai mus rau cov nqi sib tw thiab cov kev xaiv hauv eco-phooj ywg, peb siv zog los muab tus nqi zoo tshaj rau koj cov peev txheej. Nrog rau cov neeg siv khoom khaws cia ntau dua 90% thiab ua pov thawj ua tiav hauv ntau qhov kev lag luam, peb yog koj tus khub ntseeg siab rau tag nrho koj cov kev xav tau ntim. Tiv tauj peb hnub no kom pom tias peb cov hnab Mylar kev cai tuaj yeem txhawb koj lub hom phiaj.

Qhov Zoo Tshaj Plaws Mylar Hnab rau Pib Koj Lub Lag Luam

Lub tswv yim ntim cov kev daws teeb meem haum rau koj cov khoom, txawm tias nws yog Cannabis, CBD, lossis lwm yam khoom tshwj xeeb uas koj ua lag luam! Ua ib lub cim npe txawv nrog Custom Mylar Bags.

Tiv tauj peb