... : Carbon Steel, alloy steel Product Name: casting chain connecting link for railway wagons Materials: carbon steel, alloy steel, stainless ... daysPlace of Origin: Ningbo,ChinaSoftware for specification drawings: PDF, Auto CAD, Solid work,JPG,ProeMain production equipments: wax injection, ... polishing, and plating 2) We make Forged chain link by closed die forging-precision die forging process in Ningbo ...