... material and it is widely used in the jacket of air conditioner, pipeline, heat insulation, toy guardrail, recreation places ... cell polyethylene foam tube for plumbing,heating,refrigeration and air conditioning insulationB.General properties Polyethylene based product-inert material ... replacing net device system 1 set7.Haul-off unit 1 set8.Air ring unit 1 set9.Auto control unit1 setMachine photo: ...