SC/RC耐高温热电偶补偿导线 防爆测温系统热电偶用补偿电缆 SC/RC/NC/NX/KX补偿电缆 K型热电偶补偿导线 KX-GA-YJVRP交联补偿电缆 KX-HA-FFP 2*0.5补偿导线 KX KCK型补偿导线 ZR-IA-KX本安补偿电缆