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We introduced domestic and foreign high-quality steel, manufacturing standard piece include Chinese national standard (GB;T), the world industry standard (ISO), German standard (DIN), British standard (BS), American standard (ASTM;ANSI), Japanese standard(JIS;B) and etc. On the other hand，we provide series of machinary machining service on sample machine parts, tool parts and non-standard parts. Furthermore, we offers surface treatment such as lackoxide, phosphatizing, zincplating, hot-dipping zinc, Dacromet, Geomet, Magni, Nylon patch, chromeplating,nickelplating and so on.

Material: Carbon Steel ,Stainless Steel and etc.
Bonded Washers：DIN25201；JB982-77NBR；BS4320；Standard for GB , DIN , ISO , EN , ANSI , ASME , BS , JISB , UNI , IFI , SFS, GOST and ect.