... threaded ISO228/1 material: braass body , plastic handle Size:1/2", 3/4" OEM service Straight radiator valve ... with handle1, Size:1/2", 3/4"2, Material: brass, you could choose the ... brass stem, brass seal gasket, NBR o-ring, ABS handle,etc.6, Medium: water, oil, gas, etc.7 ... Semit the brass bars and make the hot forging.2, Machining and CNC processing3, Assembing the goods4, ...