200 Pcs Clear Bubble Pouches Bags Protective Bubble Pouch Double Walled Cushioning Bags Thickening Shockproof Foam Bags for Shipping,Storage

Description

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Completely laminated with PTFE. Soft liners for easy penetration
Size of the cap: 桅20mm. The diameter of center hole is 10mm. PTFE membrane Thickness 3.25mm
Use PTFE and high-quality silicone rubber as raw materials to ensure that the septa is non-toxic.
High Temperatu