Wires and cables use PVC insulation of sufficient thickness to comply with machine-tool wire (MTW) requirements of NFPA 79 and UL 1063 for durability and ruggedness.

• 电线电缆用聚氯乙烯绝缘足够厚度遵守机床电（ MTW ）要求美国消防协会79和UL 1063年的耐久性和坚固性。