Hebei Yida Reinforcing Bar Connecting Technology Co., Ltd, China's Top level-head-head & professional manufacturer of rebar coupler and Upset forging machine, parallel thread cutting machine, ulusi rolling machine and taper thread cutting machine, cold extrusion machine, steel bar hydraulic grip machine, chida chodulira, ma rollers komanso mbale za nangula kuyambira 1992.
Anakwaniritsa ISO 9001:2008 mosamalitsa kulamulira khalidwe dongosolo satifiketi, komanso anakwaniritsa UK CARES Quality Management System Certification wa BS EN ISO 9001. Kukwanitsa mwaka coupler kupanga amafika kudumpha kuchokera 120,000 mpaka 15 miliyoni ma PC.
Kuchita bwino kwambiri ndi Ntchito Zofunika Kwambiri komanso Zadziko Lonse, monga Pakistan Karachi Nuclear Power Plant, Guinea Hydro Power Plant, HK-Macao-Zhuhai mlatho wautali kwambiri wodutsa nyanja, Ivory Coast Soubre Hydropower Station, ndi zina zotero.