Tonglu Red Dragon Building Materials craft boutique plant specializing in the research and development of metal anchoring technology products, the main products are "Red Dragon" brand self-locking cut belled mechanical anchors for use in construction projects, official product by Zhejiang Provincial Construction Engineering Quality Inspection Station testing. 
       "Red Dragon brand self-locking cut belled mechanical anchors, from R & D, design, production strictly in accordance with national regulatory requirements related to product design more advanced
, Construction is more convenient, more secure performance guarantee, fully meet (or exceed) the international advanced level of similar products. 
       "Red Dragon" brand self-locking cut belled mechanical anchors, with superior seismic performance, short construction period, no curing time, and green environmental pollution, etc., with a great promotional projects. 2006 release of "reinforced concrete structure design" in GB50367 requirements in 13.1.3: load-bearing structure of the anchors should be used to expand the mechanical lock key effect after bottom anchor. 13.1.5 required: When the earthquake zone load-bearing structures using anchor bolts should be used lengthened after reamed anchor, and only allows for no more than 8 degrees fortification, built in |, || class venue construction matter. 2012 Shanghai newly released "Curtain technical specifications" DGJ08-56-2012 in 9.5.8 Article 1 provides that: Rear anchor embedded parts can be used with self-belled anchor, the anchor mold reamed special inverted conical anchors or chemical anchors. Article 5: After the pieces in place to be buried Rear welding operations should be reamed using mechanical anchors. 
    January 31, 2013 in Zhejiang Province Kusakabe issued a Zhejiang Construction (2013) on the 2nd paper on (building walls safety requirements), in order to improve the safety performance, protect public safety, the development of technical requirements "have building walls after set pieces should require the selection of cut (expand) the end of the mechanical anchors, mandatory not use ordinary chemical anchor "of. 
     "Red Dragon" brand self-locking cut belled mechanical anchors, comprehensive procedures and combine the above specifications published implementation of the "concrete with expansion, reaming type building anchors" JG 160, "after the concrete structure anchored Technical Specification" JGJ 145 and other relevant provisions of norms to be introduced. 
        "Red Dragon" brand self-locking cut belled mechanical anchors, solve the other slip connector recurring expansion bolt, chemical anchor, chemical anchorage, etc., out of, embroidered off, aging, testing is difficult, Higher construction requirements phenomenon, reaches embedded effect. 
      Our products are widely used in building walls, subway, light rail, bridge infrastructure, power plants, ports and other areas hanging fixing system.