Hydraulic bolt tensioner is one of our main products, in order to ensure that all users receive the product can be used immediately, technical inspectors will be all the products that will be shipped out of the product a test. Video site testing is the bolt tensioner pressure test, the factory maximum pressure must be 130Mpa, the actual use of pressure to customer site use shall prevail. (Finished product inspection qualified)
Bridge jacking special jack single-action self-locking spring return (can be non-standard custom)
Single acting self-locking spring reset jack, bridge synchronous jacking .
Adopting single-piece design, the overall structure is compact, small volume, especially suitable for the occasion of narrow space position.
