1. NON-METALLIC EXPANSION JOINTS. THE COMPOSITION OF THE MATERIAL FROM OUTSIDE TO INSIDE IS AS FOLLOWS: 2.0 MM THICK FLUOROPLASTIC FABRIC 1.0 MM THICK FIBERGLASS FABRIC 0.3 MM THICK POLYTETRAFLUOROETHYLENE FABRIC 1.0 MM THICK FIBERGLASS FABRIC INSULATING POK
1. NON-METALLIC EXPANSION JOINTS. THE COMPOSITION OF THE MATERIAL FROM OUTSIDE TO INSIDE IS AS FOLLOWS: 2.0 MM THICK FLUOROPLASTIC FABRIC 1.0 MM THICK FIBERGLASS FABRIC 0.3 MM THICK POLYTETRAFLUOROETHYLENE FABRIC 1.0 MM THICK FIBERGLASS FABRIC INSULATING POK