... :1,Environmental protection,non-toxicity raw material2,Longevity,anti-corrosion,anti-rust,anti-abrasion,anti-Impact3,Ex anti-pressure capability ,10KN-500KN4,Competitive price:cheaper than ... width,safe, embossing option available, Applications:Electric power pipeline well;post;telecommunication; communication pipeline well; Street lamp well, fire control well , all ...