butt welding

butt welding butt butt 碰焊用英语怎么说?应该是点焊,电阻焊接的那种.是不是resistance spot welding.butt-welding是碰焊,是不是太笼统了一点,碰焊有很多种、 英语翻译I want to use Butt- welding for carbon steel,stainless steel,Alloy steel.from 12to 12.Elbow,Tee,Reducer.全文如上,求翻译, welding是什么意思 SP welding Butt Weld butt chin BUTT SEX BUTT-WELDING ELBOW SCH STD TO 80 & SCH STD OF 90º LONG RANGECONCENTRIC REDUCTION SCH STD TO 80 AND EXENTRIC是啥意思?flange 法兰产品上的 my butt weld globe valve that has attached to i need butt weld globe valve that has attached to hubsupplier will take a standard butt weld end valve and they will attach the hub ends that you specify by welding关于截止阀的 welding generator是什么意思 Soldering/Welding是什么意思 welding nipples是什么意思 【英语】bubble-butt是什么意思? butt-steak什么意思