... ,CNC machining,surface treatment ISO9001:2000 OEM/EOM services Steel flangeNon-standard products making according to your drawings or ... : aluminium, bronze, brass, copper, stainless steel, carbon steel, alloy steel, gray iron, ductile iron... Products: fan wheels, pumping-using fan tools, tank-washing ... samples, drawings or description.Your enquiries are fully appreciated. Steel flange of OEM service