SWT/YTC series
 With extra high hydraulic system, the dimension can be matched with original nut, and there is no need to change the original design.. No need to consider space for wrench and socket, and the design of bolt is more compact. Stretch the bolt through quenching pressure to ensure more precise preload and more reliable tightening. Applicable to oil field/mine/power plant/petrochemical/ship/steel/electric power.