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hardware encyclopedia network is committed to making a knowledge base for the hardware standard fastener industry, including various entries, file download libraries, and domestic and foreign information in the industries such as bolts, screws, nuts, washers, electric and metal tools, industrial, mining and railway accessories. , it is an encyclopedia of the hardware standard fasteners industry.
vocational school
zhejiang zhongrui auto parts co., ltd. is a design, production and sales integrated into one, specializing in various standard parts and non-standard fasteners, stamping parts, bolts, nuts, wheel assembly, shafts, and tie rods. hose clamp and