... singgle double Sprocket welding bub Japan 1. Japan standard 2. A B C Single Double type 3. 45 ... 120C, 140C, 160C, 180C, 200C, 240C.Duplex B-typeDuplex C-typeThese sprockets(duplex) with one side or ... , 50SD, 60SD, 80SD, 100SD.Stainless Steel B-typeThese sprockets are made of SUS304 are available ... SUS2040B, SUS2042B, SUS2050B, SUS2052B, SUS2060B, SUS2062B. A B C singgle double Sprocket welding in Japan