... .SIZE: 400/150/74mm 3.BTU: 70,000 gas burner of casting1.Product introduction• Gas Burner (H.P) • SIZE: 400/150/74mm • BTU ... , grey iron, ductile iron, steel, carbon steel, stainless steel, brass, copper, bronze, aluminum, zinc etc. The line of products include construction ... you are interested in our products welcome to contact us. gas burner of casting