... CE Certification 3.CQC,ISO9001:2008 4.High performance, 5.Easy to operation. The Machine of Whole structure and Characteristics:J21 ... manual mode, the scale display. Extended by four triangular rail, easy adjustment.3.Use double safety valve to ensure the accurate ... the crankshaft horizontal Placement, flywheel and gear are the external open style, easy maintenance.2. Slider is a cast box structure and ...