What is the extension valve for the square bottom valve pocket?

The square bottom valve pocket extension valve refers to the part where the valve plate of the valve port extends out of the valve port, which can be heat sealed or sewn, which can effectively prevent the contents from coming out of the valve port.

Anhui Tianda Environmental Protection New Material Co., Ltd. mainly produces square bottom valve bags, inner-coated woven bags, outer-coated woven bags, color-printed woven bags, paper-plastic three-in-one bags, flexible container bags, PE bags, FFS film, mesh Eye bags, plastic woven bags, polypropylene raw materials, etc.

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