Ruian Keno Industry & Trade Co., Ltd. is a group company. In its name, there are four sub companies: Ruian WBACC Auto Parts Co., Ltd. ,Ruian TANOSEN auto parts co., ltd. , Ruian HUANUO Hardware manufacturing co., Ltd. and Ruian RASCS buses parts co., ltd,. WBACC (air dryer cartridge, air dryer filter, air dryers), TANOSEN (oil water separator; oil filters; fuel filters; water filters), Ruian HUANUO (hardware by cold heading technology), RASCS (buses parts: buses washing room parts; buses ...