Luoyang Super League Forging Co., tells you how to distinguish between cast and wrought: 13 BC - before the big bevel gear manufacturers between the 10th century, China has entered the heyday of bronze casting large bevel gear size, the technology has reached a very high level , weight 875 kg as Shang Si Mu Wu Fang Ding, the Marquis Yi of Zeng Warring States and Han Dynasty statue of transparent mirror disks are all representative of the ancient casting products. Early casting greatly influenced pottery, cast mostly for agricultural production, religion, life and other aspects of the tool or appliance, art color darker. 513 BC, Chinese cast out of the world's earliest written records found in cast iron - cast Ding Jin (about 270 kg weight). Luoyang Super League Forging Co., tells you how to distinguish between cast and wrought: Special casting, press molding materials can be divided into natural mineral sand as the main form of special casting material (such as investment casting, mud casting, foundry shell casting, vacuum casting, solid casting, ceramics, casting, etc.) and to the metal as the main casting special casting material (such as metal casting, pressure casting, continuous casting, low pressure casting, centrifugal casting, etc.) categories. Large bevel gear size bevel gear _ _ Tianjin Super League forging quality assurance by the Luoyang Super League Forging Limited. Luoyang Super League Forging Co., Ltd. (www.lysmzg.com) (www.lysmzg.cn) strong, credible, in Luoyang, Henan Province forging industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Super League forging into the brilliant and you work for a better future!