... .reasonable price+quick delivery 4.small order accepted investment casting single hookSize: 320C---1/2Ton,3/4Ton,1Ton~~10Ton, 320A---3 ... service.Main products : Precision casting,Precision machining,investment casting The line of production : Marine hardware,Auto parts,Construction hardware,Valve,Pump ... developed based upon customer's drawing or samples . investment casting single hook