GB /T 8162 40Cr seamless steel pipes for structural purpose on sale As we all know, GB /T 8162 40Cr seamless steel pipes belongs to the carbon steel plate. And the GB /T 8162 40Cr seamless steel pipe was once used in the Australian Pavilion at the 2010 Shanghai World Expo. 0086-21-61182423 [email protected] PDF Download1 Live Chat Leave a Message