Double pitch conveyor chains attachment: 1) Material: alloy 2) Model: C2040~C2162 3) Standard: ISO, DIN, ANSI Double pitch conveyor chains' attachment:1) Material: alloy + Advanced Heat treatment.2) Model: C2040~C21623) Standard: ISO, DIN, ANSI 4) Plastic and carton ( or according customers' requirement) Double pitch conveyor chains attachments