Approved by UL laboratory with UL360 standard ( cert. No. E318661) to ensure the conformity with the safe requirement of electronics products. The UL listed series tube can be used individually or assembled to a cable harness. The material of outer coating is with characteristics of oil resistant and UV resistant. The color of outer coating is optional for black or grey. Applications: Protection of circuit and wire of Lighting Rectifier, Motors, Fire Warning system, power/ communication/ data line distribution of OA system and etc..