... brand tower crane steel part such as mast section, anchor frame, fixing angle,motor, brake disc, slewing reducer, motor, jib and ... in China. Different types of mast section, anchorage collar and base frame for famous brand tower crane as follows:Mast section L44A1 ... collar 1.6m Anchorage collar 2.0m Base frame D50 for 1.6m tower crane Base frame D65 for 2.0m tower crane88HC mast ...