JIAHAN PRE-STRESSING TECHNOLOGY CO., LTD. was founded in 2008. Jiahan is a professional company in Designing, Researching, Development, Manufacturer and Selling in our main products JHM Series Post Tensioning Anchorage System, Rockbolt Anchor System, Rebar Anchor System and suitable Stretching Machine and Tools are applied widely in construction of railway, highway, subway, bridge, great building, tunnel, mining and side slope supporting. Our engineer has more than 10 years experience in Pre-stressed Engineer and Rockbolt Supporting Engineer, we can supply you a satisfied engineering solution