... , 20mm, 22mm, 25mm, 28mm and 32mm4) DIN764 chain types include 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 13mm, 14mm, 16mm, 18mm, 20mm, 23mm ... and 26mm5) DIN766 chain types include 2mm, 3mm, 4mm ... , 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 16mm ...