HONGYU METAL was founded in 1994 with a long history and experience exporting washers worldwide by own trade company----Qingdao Dukyang Trade Co., Ltd.
The materials meet the severe requirements. We use A2, A3, A4 copper. The standards about include DIN125, DIN126, DIN127, DIN7989, NFE ...
Telephone:0086-532-86885653
Address:Room A,16F, Tianzhi Mansion, Qingdao Bonded Area , Qingdao economic and Technology developing Area
The Hsieh Chin company was established in 1972 by president Cheng-Chung, Hong and it changed to "CHANNG CHIN INDUSTRY CORP." the year of 1991. Our highly stressed on development R&D manufacture process improvement which accordance with our high quality demanded.Initially, we main produced ...
Telephone: 886-7-6965658
Address:No. 200, Lane 275, Shun An Road