📦 Premium Black Poly Mailers: 安全的, 不透明 & Professional
Upgrade your shipping game with industrial-grade reliability.
Designed for e-commerce professionals, our co-extruded black poly mailers provide the ultimate balance of security, 耐用性, and brand aesthetics.
🚀 Key Performance Advantages
- 🛡️ 100% Privacy Shield
Dual-layer co-extruded film ensures total opacity. Contents remain strictly confidential from warehouse to doorstep. - 💪 Unbeatable Tear Resistance
High-density PE construction handles heavy loads without puncturing. Built for the rigors of global logistics. - 💧 All-Weather Waterproofing
The moisture-proof surface keeps your products pristine—even in heavy rain or humid sorting facilities. - ⚡ High-Speed Packing
这 “Peel & 海豹” permanent adhesive flap creates a tamper-evident closure in seconds. No tape, no glue, no mess.
📏 Size Guide & Application Capacity
Choose the right fit for your products to minimize shipping costs.
⚙️ Technical Specifications
- 材料: Premium Co-extruded Polyethylene (PE)
- 颜色: Deep Industrial Matte Black
- 厚度: Industrial Standard 60 微米 (Enhanced Strength)
- 密封类型: Permanent Hot Melt Adhesive (篡改现象)
- Eco-Safety: BPA Free & 100% Recyclable Material
💬 常见问题
Q1: Can I add my brand logo to these bags?
一个: 绝对地. We offer professional custom printing. Simply provide your design, and our team will handle the rest.
Q2: Are these sizes always in stock?
一个: 是的, we maintain high stock levels for all four standard sizes (22×31, 25×33, 28×35, 34×46) for immediate dispatch.
Q3: How secure is the adhesive?
一个: It is a permanent hot-melt seal. Once closed, the bag must be cut or torn to open, providing clear evidence of any tampering.
Q4: Do you offer samples for quality testing?
一个: We offer free stock samples. You only cover the shipping cost to your location.
