... steel industry, the high fatigue metal rapid tensile testing.It adopt four-column single pull-type frame structures,realized the bi ... . Standards:ASTM A370, GBT228, ISO15630-1, ISO6892, ASTME8 3. Main specifications: ModelWAW-300LWAW-600LWAW-1000LWAW-2000LControl modeconstant stress, deformation, displacement, three ...