... small resistance, long usage and etc. Technical specificationsOperating Pressure:1.0~6.4MpaNominal diameter:DN5-DN25Operating Medium: Oil, water, gas ... 200°C Material:20,1Crl8Ni9Ti,0Cr18Nil2M02Ti,304,316itemdescribedetail1BrandHujiang2NameBall Vavel3Operating Pressure1.0~6.4Mpa4Nominal diameter DN5-DN255Operating Medium Oil, water, ... ,304,3168 Packing 1 pcs 1 carton supply high quality ball value