Sell good rigidity frp duct rodder @China (Mainland)

There are meter marks on the protect layer of duct rodder, which can be used for measuring distance. Marks are printed by professional printing machine, which has the advantage of strong adhesion, clear writing, waterproof, anti-ultraviolet, it can be still clear even after using many times.The coating is made from a polymer blend for greater toughness and superior abrasion resistance to ensure extra long life.