By new twin - screw extruder technology, the ESC and other property indexes of (optical) cable jacket material had reached or surpassed the standard of China.

• 采用双螺杆挤出机组制备护套料新工艺所制得的电(光)缆护套料的环境应力开裂性能及其他性能指标均达到或超过国家标准要求。