... rust -Waterproof -high precision with machining -Various finish treatment bath drainBasic information of this aluminum casting bathroom accessories : Die ... 250T,b) Punching machine: 25T-400T, CNC machine: 8 sets, CNC machinig, CNC turning, CNC cutting, CNC milling, threading ... partsStamping partsProduct design & PrototypeMachining & Surface finish treatment Bath drain and bathroom hourglass