... plated,hot dip galvanized,self color,Customizedsize is availab Chain block1)Material:iron2)Structure:welded chain3)Standard:Germany standard4 ... in producting various of link chains,like the swing chain ,pet chain , double loop chain ,high test chain ,decorative chain and so on. ... company is the manufactory,have many advanced and automatic chain producting lines, many skilled workers .Our company insist ...