1.Italian type thin Ball valve stainless steel OEM China casting manufacturer 2 ... - 4".Seat: PTFE 1. Italian type thin Ball valve stainless steel OEM China casting manufacturer Main material: 304 and ... pressure:1000WOG.6.Thread standard: PT, NPT, BSP,BSPT.7.Suitable medium: water, oil, steam, nitric acid, acetate ... the customers Italian type thin Ball valve stainless steel OEM China casting manufacturer