The tightening length is suitable for the specific part of the project and the type used in the construction

60cm is suitable for reinforcing ring beams below 30cm

70cm is suitable for masonry and frame 30-35cm constructional column

80cm brick and frame 40-45cm structural column

90cm brick and frame 50-55cm column

100cm brick and frame 60-65cm column

110cm for plant and high-rise building frame 70cm column

120cm is suitable for 75-80cm columns in the framework of factory buildings and high-rise buildings