Shanghai SIRF Industrial Co.,Ltd is a trading company based in Shanghai, China.As a product supplier about whetstones, sharpeners, woodworking tools and kitchen tools,we 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.