... 2.Good price 3.Delivery:15 days cold heading die, cool heading die, cemented carbide: Products features: 1.Tungsten carbide cold ... cold punching and heading of screws and nuts. 2.our cool heading dies has high impact resistance. toughness, wear resistance,and ... Jingzuan Carbide Co., Ltd concentrate on R&D, producing and selling wire drawing dies, wortle. With high-hardness cemented carbide mold ...