galvanized welded chain 1.material:carbon steel 2.diameter:2-25mm 3.grade:g30 4.automatic machine made galvanized welded chain1. material:carbon steel , q195 ... chain: 1/8 , 5/32 , 3/16 , 7/32 , 1/4 , 5/16 , 3/8 , 7/16 , 1/2 , 5/8 , 3/4 ,7/8 , 19. Medium link chain:1/8 ... , 5/32 , 3/16 , 7/32 , 1/4 , 5/16 , 3/8 , 7/16 , 1/2 , 5/8 , 3/4 ,7/8 , 110. Long link chain: 1/8 ...