16B-2 duplex roller chains 1.Factory price 2.06B,08B,10B,12B,16B,20B,24B, ... 5mm pitches),B series (9.525-50.8mm pitches)and their heavy series products(19.05-44.45mm pitches)2)motorcycle chains ... pitch conveyor roller chain attachments:A-1,A-2.K-1,K-2,SA-1,SA-2,SK-A,SK-24)double pitch ... transmissions v& conveyor chains :2040,2050,2060,20805)leaf chains:LH series ...