gbt 8162 q345e hollow section gbt 8162 q345b hollow section - BBN A283C steel
Inquiry to buy the gbt 8162 27simn pipe,carbon steel plate , gbt 8162 q345b hollow section. GBT 8162 is a kind of China standard about steel.GBT 8162 20# seamless pipe is a kind of seamless steel pipe suitable for general structure and mechanical structure. Widely used in the manufacture of structural parts and mechanical parts. GB/T 8162 Q345B round pipe advantages.