Our company is a professional supplier and manufacturer for metal hardware of high buildings. Our main products and service is Casting Iron Pipes, Fittings, SS Couplings, Carton Steel Clamps which was used for sewer drainage system of buildings. And Casting iron manhole covers and frame , Casting tree hole and Casting cooking hardware , Casting valves , fire protection fittings and connectors, etc.. All our products are meet USA and European standard ASTM A888/CISPI301 , ASTM-A536, DIN EN877, KSD437, ISO2531/EN545 etc.Welcome all new-old customers come to our company for visitingBelieve that we are your best partner in futureShijiazhuang Beisai Trade Co., Ltd