Mechanical Testing by 600KN Universal Testing Machine
Hengyang Hongda Precision Manufacturing Co., Ltd
Add：Intersection of Huiing avenue and Quanzi Road, Hengnan Industrial Concentration District, Yunji Town,Hengnan County, Hengyang City, Hunan Province,P.R.China.
Hengyang Hongda Special Steel Tube Co.,Ltd
Add：No.3 Mill, Deep Processing Industrial Park of Hengyang Valin, Zhengxiang District, Hengyang City,Hunan Province, P.R.China.