Sell astm erw steel pipe line for oil/ natural gas @China (Mainland)

MAT:

Material: X42/X46/X52/X56/X60

STD:

Standard: API 5L

Note:  API short for American Petroleum Institute, used in the line of oil & natural gas transportation as an advanced technical standard.

Post by Ginny Qin    Minerals & Metallurgy    @2012-06-25 10:25:11