Tamper Evident Plastic Shipping Mailer Bag

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  • Delivery term:

    The date of payment from buyers deliver within days

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    Long-term effective

  • Last update:

    2019-12-19 01:18

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Company Profile

Guangdong Tengen Industrial Group Co., Ltd

By certification [File Integrity]







Website:http://www.tengenpack.com/ http://tysyjt.dzrty.com/



Wholesale Anti-counterfeit Poly Mailer Security Plastic Courier Bag Tamper Evident Plastic Shipping Mailer Bags


The tamper-resistant Low-Density Polyethylene shipping mailer is mainly focus on assuring the security of the goods packed inside during transportation. There are many secure levels for your options to against water, heating, code and more. The tamper-proof adhesive strip for a security closure which left some marks when it is opened,each bag with the trackable, unique, readable barcode and serial number.


Tengen is a leading poly mailer manufacturer with the qualification of “China National Secret Carrier Printing” and “Barcode management and Printing”. You can trust us no matter the quality but the price, as we have rich experience and also have built the unique Confidential Workshop which is under 24 hours monitoring in this industry.


Material: LDPE, MDPE, HDPE

Size: Customized

Printing:  printing up to 8 colors

Thickness: 25-120u

Application: express, e-commerce, mail service, logistic and important items shipping.

Delivery time:15-25days



●  Bag edge is double heat sealing, explosion-proof

●  Evenly thickness, opaque and puncture-resistant

●  100% virgin materials, recyclable

●  With barcode and serial number, each bag is trackable and unique

●  Strong tamper-proof adhesion, open with “VOID” marks left

●  High tensile strength, safety assured during transportation




Tensile strength

Elongation at break

Tearing strength

Adhesive breaking strength


Anti-counterfeit bag

20.1(horizontal   MPA)

679(horizontal %)

5.6(horizontal N)



22.5(vertical MPA)

856(vertical %)

5.2(vertical N)


Our Advantage

●  We are the largest courier bag factory in China

●  We have the unique confidential workshop in this industry

●  We produce hot melt glue and release paper by ourselves

●  We have the most advanced equipment, high production capacity

●  We are a group and public company, more reliable

●  We have rich customer bases globally, such as Walmart, UPS, FEDEX, Royal Mail etc.

●  We have past ISO, FSC, SGS inspection, good quality

●  We have over 10 years experiences, more professional



1.    What is your MOQ?

Our MOQ for tamper-evident security poly mailer is 20000pcs, due to the specialty and different adhesion requested.

2.    Do you charge the custom design?

We can provide free design according to your requirement, but we will charge the printing plate around 100USD per color at the first order.

3.    Can you confirm delivery on time?

We have good production capacity, are able to ensure on time delivery.

4.    What is your payment terms?

Our common terms is 30% advance payment, balance against BL.

5.    Where is your factory?

Our headquarter is located in Dongguan city, we have 6 production bases in different cities.