... cooktop brass,aluminium and iron parts are produced by casting,forging,ect. gas burner cap,burner head,cooker cap ... WK-001MATERIAL: brass 59(alloy), aluminium, enamel ironBASIC PROCESS: hot forging, die casting, CNC, machining, shotblastFINISHING: enamel, shotblast,polishing etcEPECIFICATION: φ154 ... cap50.50 S01-03enamel burner cover41.50iron hot selling brass and aluminum die casting gas burner cap