Short Pitch Precision Roller Chains (A Series)

We are offering short pitch precision a, b series roller chain.
Specification:
1)a series chains:
a. Simplex: 25-1~240-1
b. Duplex: 25-2~240-2
c. Triplex: 25-3~240-3
d. Quadruplex: 40-4~240-4
e. Quintuple: 40-5~240-5
f. Sextuple: 40-6~240-6
g. Octuple: 40-8~240-8
2)b series chains:
a. Simplex: 04b-1~48b-1
b. Duplex: 04b-2~48b-2
c. Triplex: 06b-3~48b-3
d. Quadruplex: 08b-4~48b-4
e. Quintuple: 08b-5~48b-5
f. Sextuple: 08b-6~48b-6
g. Octuple: 08b-8~48b-8
3)colors available: natural, yellow, blue, black
4)materiials: carbon steel, stainless steel