... low temperature, anti-corrosion We purchase raw materials from foreign or large-sized steel mills, the company can produce 1/2 ... -6” M12-M160 high-strength bolts, nuts and screws in accordance with GB, ANSI, DIN, EN, RCCM-2007, JIS, ISO, SH ... , GD and GJB standards, as well as non-standard fasteners. With powerful technical strength, complete equipment, superior quality and fine after ...