采用新型高分子合成材料，在井道环境不易老化、耐磨损、抗腐蚀。增加减震 吸音结构，避免异响，降低运行噪音。采用模块化结构，便于安装维保。采用 模块化结构，可单独更换受损位置部件，降低物料更换成本。 

New type of polymer composite materials, in the shaft condition,it is not easy to aging, wear resistance,corrosion resistance. Additional sound-absorbing module,for reducing ride noise. Rather modular structure is convenient for installation & maintenance, can replace the inoperative parts separately for reducing the material cost.