Pipe schedule

Pipe schedule G.I.PIPE SCHEDULE 80 PIPE 3 SCHEDULE 80X16是什么意思, 1/2 G.I.pipe schedule 20 是意思? Pipe 在一份管件报价中,有pipe schedule底下对应是40或30,这指什么?等尺寸 外径 内径 pipe schedule2 2.38 2.067 40 有哪位大虾知道钢管行业中SCHEDULE 40 AND SCHEDULE 10 PIPE到底属于哪种规格啊?BLACK AND GALVANIZED SCHEDULE 40 A-53 GRADE A&B PE X 21'.BLACK AND GALVANIZED SCHEDULE 10 PIPE A-795 OR A-135 PE AND GROOVED END X 21',能不能帮我翻 .Schedule 80 Pipe size:3 sh 80 听说是80厚的意思,那口径都只有3“=75mm,这个壁厚80怎么可能啊? 英语翻译A typical connection material from a downspout to a cistern is a 3- or 4-inch diameter schedule 40 PVC pipe or the more environmentally sensitive ABS pipe.For potable rainwater collection,only schedule 40 PVC should be used,as it is the o pipe insert oxygen pipe schedule是什么意思 schedule是什么意思? schedule是什么意思 schedule是什么意思 英语翻译schedule schedule on 翻译radiator pipe cover