... 0.01mm 1):Aplication:automotive, electronic, telecommunications, mechanical products, medical devices, etc.;2):Material: Iron/Alluminum, Copper, Alloy, Carbon steel ... SPROCKET MANUFACTURING Co.,Ltd established in 2009, we have 12 subsidiaries in china, dealing in chains, gears, sprockets, worm ... skilled employees3. Save time and money: We specialized in producing all kinds of standard and non-standard ...