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Qingdao Tianwei Import&Export(Qingdao Tianwei Casting)

Company Introduction
Investment casting(lost-wax investment casting):stainless steel,carbon steel,alloy steel,duplex stainless steel,iron casting.
Sand casting: stainless steel,heat-resisting steel,high alloy steel.
Machining:turning,milling,drilling,grinding,tapping the threads,five-axis machining,CNC;CMM inspection; spetrometer for checking chemial elements; mechanical properties testing; pressure-testing under water;anti-rust oil;
Heat treatment: solution annealing,normalization,quenching and tempering.
surface treatment: zinc-coating,blackening,mirror-polishing,satin-polishing,E-polishing.
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