... lifting and lowering 3. Single mast,6-12m height Aerial working equipment--Single mast aerial work platform1)CE and ISO certification ... alloy design,make sure it is handled fluently;mast will not deformate,construction is nicety and compact,machine body design is ... JC5099-1998,JG/T5103-1998,and CE.Single mast aerial working platform Technical DataCodeGTWY-6GTWY-8GTWY-9GTWY-10GTWY-11GTWY-12GTWY-12GWork ...