以下是制作标准和2个阀门名称和型号！请内行大虾们多费心，奢侈2张PPT或者PDF图！不能上传的请加Q“627432734”传给我。感谢至极！
(A)Female Threaded Ends Full resilient Seated 2piece ball valve
with lever&sleeve
body&bonnet-brass,ball-brass
stem-brass
seal-PTFE
Pressure ratings-600WOG,threading-BSPT(female)
(B)Female Threaded Ends Metal Seated check valve
body,cover&disc-brass
seat-brass
seal-PTFE
Pressure ratings -pn16,threading-BSPT(female)