1.combustion-proof 2.fire-resistant 3.installation conveniently, 4.customizing the goods according to the request our combustion-proof pvc trunking has strength tenacity,and are combustion-proof,fire proofing,damp proof,acid-resistant,age-resistant.PVC COMPARTMENT TRUNKINGModelSize(mmxmm)Thickness(mm)Tolerance(mm)AID-1100X50/21.50.1AID-2100X50/21.90.1AID-3100X50/31.50.1AID-4100X50/31.90.1