Rock Testing Machine, Dynamic Fatigue Testing Machine, Impact Testing Machine manufacturer / supplier in China, offering 2500kN Automatic High-Strength Bolt Tester for Torque / Shaft Force Testing Applied in Wind-Power Industrial, 2500kN Bolt Axial Force Tester for Wind Turbine/Tower Flange Bolt/Fastener Preload Verification, Heavy Load 2500kN Large Hexagonal Constructional Bolt Stress Analyzer Test Machine and so on.