无接缝滑触线3极、4极、6极
上海徐吉电气有限公司
p1Src=//y1.yzimgs.com/uploads_old/399897/2015091419015551_old.png&p2Src=//y1.yzimgs.com/uploads_old/399897/2015091419015670_old.png&p3Src=//y1.yzimgs.com/uploads_old/399897/2015091419015675_old.png