... design ,easy to operate (2)high quality, competitive price (3) ISO9001:2000 , (4)CE ,GOST We are Jinan huifeng keda trade company ... /36 Upper chord of lifting beam∠125 square pipe,∠100×8 square pipe, ∠80×8square pipe,φ89×6 Standard section dimensions(mm) 2 ... ,∠180×16,∠125×12 square pipe, Q345B Parallel height of lifting beam(mm)1450/1380 tower crane with good applicability with ISO9001:2000