例句與造句

1. This company main product : each kind of stainless steel 304 , 316 , 316valves , ( flange ) ball valve , cut - off valve , gate valve , checkvalve , filter , belt blueprint extremely the product widely uses inprofession and so on petroleum , metallurgy , electric power , medicine
   本公司主要產(chǎn)品：各種不銹鋼304 、 316 、 316閥門(mén)、 （絲扣、法蘭）球閥、截止閥、閘閥、止回閥、過(guò)濾器、帶圖紙非常.產(chǎn)品廣泛用于石油、冶金、電力、醫(yī)藥等行業(yè)。
2. It's difficult to find checkvalve in a sentence. 用checkvalve造句挺難的