1. Specializing in the production of ASTM A307 / a307m carbon steel bolts and studs with tensile strength of 6000PSI, and ASME j429 British and American GR5 / gr8 high-strength screws.

2. Specializing in the production of ASTM A193 / a193m, B7 / b7m, B8 / b8m, B16 high temperature resistant alloy steel and stainless steel bolts; ASTM A320 / a320m l7.l7m, b8.b8m, b8t low temperature alloy steel and stainless steel bolts; ASTM a574 high strength alloy steel hexagon socket screw; ASTM f593, f837 inch and American stainless steel screws.

3. National standard material: Q235 / 35#/ 45# steel, 40Cr, 35CrMoA / 42CrMo alloy steel. 304, 316, 316L, 321 stainless steel, etc.

4. Screw grades 8.8, 10.9, 12.9, GR5, gr8. Nut grades are: Grade 6, 8 and 10.

5. Electroplating: blackening, environmental protection galvanizing, color zinc passivation, Teflon (PTFE) cadmium (CAD) nickel plating, Dacromet plating, jiumeite plating, hot galvanizing / hot dip galvanizing, etc. are applicable to the requirements of various corrosive environments.

6. High temperature and high pressure, low temperature and high pressure valve flange connection, petrochemical industry, fine chemical industry, pipeline installation, ship repair, mechatronics, fluid engineering, pressure vessel, steel structure, wind energy, hydropower generation, mining equipment and many other industries.

We specialize in manufacturing fastening products with high standard, high quality and high safety performance, which brings convenience, quickness and effective cost saving to customers.