gear ring,forging parts Changzhou Hong Run Industry and Trade Co.,Ltd. is specialized in forging machinery manufacturing and processing with 10 years history. Main products:forging parts flange,gear,roller, petroleum machinery components. Also,can be customized according to customer needs and specifications of all types of forging products. The quality is absolutely guaranteed with our advanced testing equipment and professional teamwork. Our company in China has a stable customer source, establishing a good credit reputation