Mining

GNEE's S355J2H precision seamless steel pipe is usually produced using a cold rolling process, which helps improve its precision and reduce losses during machining.

ASTM A53 Grade B is a standard specification established by ASTM (American Society for Testing and Materials) for black carbon steel pipes.

A213 Grade T122 Steel tubes and pipes, to be used to respond to high-efficiency industrial waste incineration boilers, have been demand to maintain both high quality & high performance.

ASTM A335 P11 P12 P22 steel pipe is a low carbon steel with specific chemical composition and mechanical property requirements, and its hardness and strength can be improved through different heat treatment methods.