Seamless steel pipe to ASTM A106, GR.B, in 5.8M length.
Sch 40
4.0 m/tons of?? 1/2"
3.0 m/tons of?? 1"????
2.5 m/tons of?? 1.1/2"?
5.0 m/tons of?? 2"????
4.0 m/tons of?? 1/2"
4.0 m/tons of?? 1/2"
下邊的4.0 m/tons of?? 1/2"是什么意思?是說1/2"的數(shù)量是4噸嗎?
請高手指點??? ?