GB/T8162-1999 seamless steel pipe for structure, mainly used for general structure and mechanical structure. Its representative material: carbon steel 20, 45 steel; Alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35crmo, 42CrMo, etc.

DIN 1630 ST44.4 seamless steel tube after heat treatment without tempering, hardness greater than HRC55 is qualified. The actual hardness is HRC55. In the heat treatment of DIN 1630 ST44.4 seamless steel tube parts after tempering and tempering have good

Through the use of professional seamless steel pipe curing agent on regular cleaning and disinfection of the sewer pipe, to keep the sewer pipe unimpeded, to avoid seamless steel pipe to become a breeding bed of germs. When cleaning seamless steel pipe, i

Precision steel pipe is a kind of high precision steel pipe after cold rolling or cold drawing. Full name: Cold rolled precision seamless steel pipe. Because the inner and outer wall of the precision seamless steel tube has no oxidation layer, no leakage