2PC Thread Ball Valve(PN64) Size:1/4~4'', Full Port Material: 304 316 Standard: DIN ... causticity fluid Detailed Product Description:Connect form: ThreadSize: 1/4"∼4".Suitable medium: water, oil, steam, nitric acid, acetate ... API, GB, BS, we are strict with the security and quality ,it was accepted by clients and sells to ... internal, external market.Dimension: 1/4", 3/8", 1/2", 3/4", 1"1 1/2'', 2'', 2 ...