steel pipe and fittings是什么意思RT铁管？不锈钢管？and fittings是什么意思啊

steel pipe sleeve and penetraiton什么意思? stainless steel and other pipe fittings什么意思 overroll steel pipe是什么 CW steel pipe是什么钢管? stainless steel pipe(H-D12) steel pipe and fittings是什么意思RT铁管？不锈钢管？and fittings是什么意思啊 ductile iron,steel or HDPE pipe Steel and cast steel Is China National Building Material International( CNBM) the largest manufactuerer and exporter in STEEL PIPE industry in China? 求翻译 a steel pipe is pushed down to stop the sides from falling in and to keep out water . Stainless steel pipe and tube shall be supplied in the anneal solution and picked condition.什么意思?涉及对管件的处理的. 英语翻译At the same time,a steel pipe(钢管) is pushed down to stop the sides from falling in and to keep out water. 请问black ew steel pipe 标准为A53 B stainless steel lance pipe 是什么管,什么标准?主要应用领域？ 钢管怎么译?是steel pipe还是steel tube?都能用?那两者有什么不同? 完型：At the same time,a steel pipe(钢管) is p______ down to .A.put B.pulled C.pushedAt the same time,a steel pipe(钢管) is p______ down to stop the sides from falling in and to keep out water.附全文：Nowadays more and more people care abo 英语翻译XX Co.,Ltd.was established in 2004,manufacturing and selling steel materials,fasteners ,pipe fittings etc.Our own factory locates in Leqing and three sales offices in Chongqing,Leqing and Shenyang,which are taking charge of domestic busin Pipe