... Other name:precision flange,flange coupling,casting flange,cast iron flange,fully machined componnetManufacturing process:sand casting,centrifugal casting etcMachining:turning,milling,grinding,drilling ... the following variety1.material: alloy Steel, aluminum,carbon Steel,plastic and stainless Steel2.process: casting or forging 3.application: connecting or couplingCastings ...