Haoyonglai  Firmware Factory is a professional production of nuts, bolts, standard parts enterprises, located in the largest base of standard parts - Hebei Yongnian. Is near to Beijing-Guangzhou railway, 107 State Road, green and red highway, the traffic is very convenient.
  The factory has more power and high-frequency high-speed cold heading machine hot forging press furnace. The main production International (GB) American (ANSL), German standard (DIN) British standard (BS) nuts, 1 / 4 1 / 2 5 / 16 3 / 8 7 / 16 9 / 16 5 / 8 3 / 4 7 / 8 . Cold heading M6-M30 GB nuts, flange nuts, nut the new national standard, Pentagon nuts, rings, nuts, nylon self-locking nuts, self-locking nuts of iron edge, round female, square nut, trapezoidal buckle nut, thick nut, welding nut, Slotted nut. Hot Section M30-M100 holes to increase the international hair thickening mother Flip | high-strength nuts, made all kinds of standard parts, and other special-shaped nut.