Take a look at the hydraulic test to check the steel pipe's bearing capacity. Steel pipe is mainly used in the construction of large livelihood projects, steel pipe must have the ability to safely use for ten decades under harsh conditions, hydraulic testing is particularly important for the safety of steel pipe use.

First of all, welding method: ordinary welded pipe is mainly made of steel plate as raw material, which is made of bending welding, while high-frequency welded pipe is made of coil plate as raw material, and generally 325-660 caliber steel pipe uses coil plate as raw material.