... corriosion resistant, heat preservation 3.customize for you butterfly handle gas ball valve1.Model No. : XLD-1119 2.Material: ... Normal or-20°C---150°C. 5.Medium:Water,Oil,Gas,etc. 6.Size:1/2'' 7.Surface: Yellow ... 10. One Stop Production to ensure the Delivery and Quality!We smelt the brass bars,make the hot forging, ... service,we are able to ensure the competitive price,high quality and prompt delivery.