We are offering cold extrusion coupler. Hbly φ16-φ40 cold squeezing coupler cold squeezing coupler can link the steel bar which diameter is from 16mm to 40mm •the tensile strength of coupler can equal to the material. •it can connect steel bar , one of whose end is buried. •strong intensity connector, stable and reliable; no specific requirements on the weldablility of the rebar; suitable for bridge construction and other construction site the parameter of the cold extrusion coupler size :16, 18, 20, 22, 25, 26, 28, 32, 36, 40 out d: 30, 33, 36, 40, 45, 46, 50, 56, 63, 70 inner d: 21, 23, 25, 28, 31, 32, 34, 38, 43, 48 length:100, 110, 120, 132, 150, 155, 168, 192, 216, 240 the technology is assessed by the ministry of construction as “world advanced, high quality, high efficiency, safe, and economical thick diameter distorted steel bar connection technology which can be widely used in the construction industry at home and abroad.