... or exceed DIN, ANSI,ISO,BS,JS standard 12A duplex Transmission Chains Transmission Chains meet or exceed DIN, ANSI,ISO,BS,JS ... Huayu can design and manufacture almost any solution for power transmission problems. We offer quality, reliable products that perform consistently under the ... -function Heat treating furnaceAssembling machineAssemble automaticallyOur package 12A duplex Transmission Chains