Copack ST3550A 350×500 500张（用于工业产品，科学与化学的标准包）

Copack ST3550 350 x 500 500 sheets Standard bag for industrial products and science and chemistry<br>[Features]<br>●Additive-free polyethylene sealant and powder-free specifications<br>●Smooth opening with magic cut processing<br>●Thorough quality control system<br>●A lineup of thick and large types This product is a standard bag for industrial products and physico-chemistry, so please do not it for applications that require晚期绝育或灭菌，例如药物的直接包装。