嫩草成人国产精品_丁香六月六月婷婷_乱人伦中文视频在线观看免费_九九影院理论片_国产无套抽出白浆来_在线无码中字国产网站_女生裸体软件_午夜不卡福利_内射字幕在线观看_午夜福利激情免费电影

Resistance fire fire-resistant Wire

Implementation standards:Product implementation GB / T 5023 "rated voltage 450 / 750V and below PVC insulated cables", JB / T 8734 "rated voltage 450 / 750V and below PVC insulated cables wires and cords" and GB / T 1966…Detail

Fire-resistant Wire

Product Usage:This product is suitable for low-voltage power supply system in publicfire, fire safety requirements of very high places, especially in somehigh-rise buildings, oil platforms, mines, metallurgy, ships, power stations,subways, …Detail