... sliding sleeve, synchronizer body, synchronizer ring, cone ring, double cone ring etc)for ZF gearbox transmission ZF5S-150GP, 5S-111GP, 5S80, 5S120 ... GB/T19001-2008 idt ISO 9001:2008 Other certificate for product can be supplied according to your requirement 2 our ... manufacturer of ZF transmission gearbox assembly and related parts for heavy-duty truck and luxurious bus 5 Our products applicable ...