Yanggu Yitong Plastic Co., Ltd. for an existing duct defects (not durable, easy to crack, pressure is small, rolled easily broken),

In particular the development of a mine with high-pressure air hose, colorful, not fade.

Inner and outer tubes are made of a special soft PVC, only four seasons soft, and resistant to pulling, not afraid of crushing, abrasion resistant material added to the outer tube does not appear dregs long pull phenomenon, the middle layer 6 shares bearing strength polyester thread weave into a high-pressure 200 kg will not break.

Bonding process developed, not hierarchical, bonding firm, but also soft. Is mine with jackhammers, picks exclusive possession.