China steel pipe
ERW steel pipe manufactuer in China .
stainless steel pipe(H-D12)
steel pipe and fittings是什么意思
CW steel pipe是什么钢管?
stainless steel and other pipe fittings什么意思
stainless steel lance pipe 是什么管,什么标准?
PRODUCTION OF COLD DRAWN SEAMLESS STAINLESS STEEL TUBES/PIPE
请问black ew steel pipe 标准为A53 B
Stainless steel pipe Sch.# 10 S,Thickness 6 mm
"钢管"怎么译?是steel pipe还是steel tube?都能用?那两者有什么不同?
China Iron and Steel Design Institute?
完型:At the same time,a steel pipe(钢管) is p______ down to .A.p