Changzhou Wujin Hongcheng Auto Parts Co.,ltd
Hongcheng seals Catalog 2012. About Us. Changzhou Wujin Hongcheng Auto Parts Co.,ltd is the largest manufacturer of internal combusion engine cooling water pump seals in the nation at present,and registered producting 'HongCheng' brand mechanical seals. Our company located at beautiful Taihu Lake National Tourist Resort,east of Wuxi, close to ...