1. Use solid 45# carbon or 40Cr steel as raw material.
2. Tensile Strenth is more than 540MPa.
3. There are 2 types, one is full grouting coupler(connected with rebar by concrete-based grouting material), and the other is semi/half grouting coupler(which one end is connected by threaded screw, and the other is connected by concrete-based grouting material).
Size
|
Material
|
O.D. x I.D. x L. (mm)
|
T16
|
45#
|
30x25x200
|
T20
|
45#
|
30x26x210
|
T25
|
45#
|
30x27x220
|
T32
|
45#
|
30x28x230
|
T40
|
45#
|
30x29x240
|