About Hebei Sequoia Metal Products Co., Ltd. is committed to improving the reinforced connecting sleeve and production enterprises. We have our own R & D team, we are focused on improving the mechanical properties of the sleeve, and reduce production costs. Production plant covers an area of ??60 acres with a registered capital of 5 million yuan. We pursue a "quality first, honesty, with the times, the pursuit of excellence." Hebei Sequoia has first-class production equipment and production workshop, professional team of nuclear prices and strict quality control system, we have the full implementation of ISO9001 quality management system, strict implementation of ISO9001 quality management system for production, starting from each production processes, control of production The whole process to ensure zero defect products. Sleeve material commonly used international standard 45 carbon steel rebar corresponding connector is HRB400 rebar. April this year, the state issued a document to promote the use of high-strength earthquake HRB500 rebar, I plant developed specifically for this reinforcement HRB500 rebar connections for connecting sleeve. I produced a reinforced mechanical connection sleeve has a high joint strength, connection speed, applicability, high efficiency construction, materials, energy, and economic advantages. Reinforced connection sleeve for a variety of steel connection works. The company reinforced connecting sleeve produced by the State Construction Engineering Quality Supervision and Inspection Center, all items are standard. Using performance not less than 45 carbon structural steel, its mechanical properties, chemical composition in line with GB699 standard sleeve flexor Standard reported capacity and tension strength values ??of the corresponding standard bearing capacity of 1.10 times greater than steel.