Shanghai SIRF Industrial Co.Ltd is a trading company based in Shanghai, China.As a product supplier about whetstones sharpeners, woodworking tools and kitchen toolswe can provide with professional OEM services.Replying inquiry within 24 hours, our service commitment is 95 of online products shipped within 3 days.It is our vision to create long-lasting partnerships with you% work together to identify customers needs and provide solutions that fuel your success.