高质量的压力封住夹钳

Double sealed with soft and hard,note soft sealing agent to prevent squeeze into the main channel for the secondary seal,rigid seal the welding head to weld in the pipe cap, forming a sealed cavity, the first sealing cap cavity injection with a sealant to prevent welding the second leak occurred in the course, put an end to the production of fire or explosion.Product flexibility,does not apply to elbow.