1. ISO9001:2008 2.manufacturer 7 years 3.zf gear box(caja de cambios zf) 4.5S111GP,S690,QJ805,5S150GP,S580, ... certificate: GB/T19001-2008 idt ISO 9001:2008,Other certificate for product can be supplied according to your requirement2 our service ... , 16S and so on.7 Our main products:Gearbox aseembly, transmission, gear, sliding sleeve, synchronizer hub, synchronizer body, Synchronizer cone, clutch body ...