Spiral steel pipe is a kind of product formed by welding technology, so in the production process for the welding process is very strict. (1) Raw materials are strip coil, welding wire and flux. Strict physical and chemical tests must be carried out before being put into operation. (2) The joint

Thick-walled straight seam steel pipe plays an important role in people's way of life and some things, but maintenance and maintenance has always been a headache. Let's see what maintenance and maintenance of thick walled straight seam steel pipe need to pay attention to! First, choose the right s

Straight seam steel pipes and spiral steel pipes are both a kind of welded steel pipes. They are widely used in national production and construction. Straight seam steel pipes and spiral steel pipes have many differences due to different production processes. The following details will discuss the n