Closed die forging process is also called as impression die forging, is a kind of forging method that can be achieved by closed die forging press. Closed die drop forging drives a plurality of punches or die cavities, makes the material mainly carry out lateral extrusion ...
New Technology of Repair of Forging Die by Built-Up WeldingSurfacing welding-Surfacing welding Dalian Longsheng Metallurgical Equipment Manufacturing Co., Ltd was founded in 2014,total registered capital is 20 million RMB,we are a professional manufacturer of Special welding ...
Dalian Longsheng Metallurgical Equipment Manufacturing Co., Ltd
From automotive/high-speed rail to aerospace, from wind power generation to gears, from high-pressure boilers to mechanical transmission, from oil platforms to the vast sea, Hongsheng Special Steel\'s creation is everywhere. As one of die steel manufacturers, we proudly supply ...