Specializing in the production of hexagon socket set, flat end set, tip set, cylindrical end set, knurled set, ball set, straight slot set, plum blossom slot set, cross slot set, and undertaking various through-hole, round hole, non-standard, headless screws, etc. The main product standards include the national standard -GB, the German standard -DIN, the American standard -ANS1, the British standard -BS, the Japanese standard -JS, the world standard - SO, and the non-standard standard -SP, etc. The products are widely used in various industries such as hardware, auto parts, mechanical and electrical, aviation, machinery, electronic appliances, military industry, etc.