采用(yong)(yong)新型高分子合(he)成(cheng)材料，在井道環(huan)境不(bu)易老化、耐磨損(sun)、抗腐蝕。增加(jia)減震 吸音(yin)結(jie)(jie)構，避免異響，降(jiang)低運行噪音(yin)。采用(yong)(yong)模塊(kuai)化結(jie)(jie)構，便于(yu)安(an)裝維保。采用(yong)(yong) 模塊(kuai)化結(jie)(jie)構，可單獨更換受損(sun)位置部件(jian)，降(jiang)低物(wu)料更換成(cheng)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.