Sell oil & gas transportation spiral steel pipeline @China (Mainland)

MAT:

Material: Q235/Q345/L245/L290/L360/L415/L485

STD:

Standard: GB/T9711.1-1997

Note: Petroleum & natural Gas industries----steel pipe for pipelines----Technical delivery conditions----Part 2: Pipes of requirements class B

Post by Ginny Qin    Minerals & Metallurgy    @2012-06-25 10:24:00