... ,PU,Rockwood sandwich panelWindowPVC or Aluminum AlloyDoorSliding or Rolling up doorCost-effectiveFast and easy installation greatly shorten the construction ... . Fast construction and easy installation.4. Long using life: up to 50 years.5. Others: environmental protection, stable structure, ... which can be made into normal type, sliding type or roll up type with material of PVC, metal, alloy aluminium, ...