... and safety lifting and lowering 3. Single mast,6-12m height Mast lifting machineSingle mast aerial work platform--CE and ISO certificationStandard ... Aluminum alloy design,make sure it is handled fluently;mast will not deformate,construction is nicety and compact,machine ... exceed JC5099-1998,JG/T5103-1998,and CE.Single mast aerial working platform Technical DataCodeGTWY-6GTWY-8GTWY-9GTWY-10GTWY- ...