Qingdao Tianwei is very specialized in investment casting and sand casting to produce all types of engineering/metal parts. We can cast about 100 kinds of alloys.

As for investment casting(lost-wax casting method), we have two production lines: Silica-gel and water-glass so that we can meet the different demand of different customers.

Investment casting(lost-wax investment casting): Stainless steel, carbon steel, alloy steel, duplex stainless steel, iron casting.

Sand casting: Stainless steel 304, 316; Duplex stainless steel 17-4pH, 630; Heat-resisting steel, high alloy steel.

Machining: Lathing/turning, milling, drilling, grinding,

Tapping the threads, five-axis CNC machining; CMM inspection; Spectrometer for checking chemical compositions; Mechanical properties testing; Pressure-testing under water; Anti-rust oil;

Heat treatment: Solution annealing, normalization, quenching and tempering,

Carburizing treatment, case-hardening, nitriding treatment.

Surface treatment:

Zinc-coating, nickel-plating, blackening, mirror-polishing, satin-polishing, E-polishing. Dacromet surface treatment

We would like to become your Chinese production base!

Sincerely hope to cooperate with you!

Best regards

Maria Li

Web Site: sisuclub.com/showroom/tianweicasting sisuclub.com/showroom/tianweicasting