China polished  hasp,door hasp with polished,  stainless steel door hasp

1.Stainless Steel Hinge, boat,yacht,door & window hinge
2.Material:AISI316 stainless steel and brass
3.High Hand Polished

Dongying Tuopu Metal Manufacture Co., Ltd. is one of the leading manufacturers of stainless steel, carbon steel, alloy steel and copper in China. Our company also produces precision castings, including heat treated, machined, electropolished, mirror polished and die making castings.

Tuopu Metal Company is an experienced manufacturer of steel precision investment castings, and specializes in the export of high quality castings to more than 20 countries such as America, Europe and Australia, etc.

1.      Casting: investment casting ,precision casting, lost wax casting ,soluble glass process complex shell process.

2.      Materials: stainless steel ,carbon steel ,alloy steel, heat resistant steel ,tool steel ,brass and aluminum ,according to DIN ,EN, ASTM, BS,JCSI.

3.      Piece numbers: small, medium and large series.

4.      Process: cast, machining, turning, milling, drilling, thread cutting.

5.      Surface treatment: glass rays electrolytic polishing, coating, varnishing, bromzing. Passivating, grinding, polishing

6.      Analysis wet chemically or by x-ray spectrometer. 3-coorcdinate. Computerised numerical. Control measuring ,machining ,pressure inspection up to 200bars ,mechanical values for tensile strength. ,yield stress ,notched bar impact tenacity, x-ray,metallograph.

7.      Quality control: According to ISO 9001 2001