To satisfy the markets & customers' requests . From year 2000, we have invested one million US dollars to establish R&D department in developing new & special types of fasteners. We even purchased professional machines to produce these new developments. To prevent any mistakes happen during developing, every procedure is based on standard of ISO9001 edition in 2000. From design developing information researchconstruction developed itemsdesign approvalscale production, every stage is inspected & controlled strictly by the designs, setting management & design amendment, an effective mode is run out to progress with cost effective and efficient use of time for future production. The R&D results are stated as follow : 1.Hex with SS head cap 3.Point with wing 2.Serrated concave washer 4.Automatic washer assembling machine All these items have been in large scale produce and we even got TAIWAN patent for "serrated concave washer". In order to serve our clients & satisfy the market requirements, we have upgraded our developing standard to produce supplementary value's fasteners. OEM case is always welcome for business cooperation. If you need our service, please do not hesitate to contact us immediately.