HW19710T Gear box Transmission Auxillary BoxBetty Han (sales manager)SINOTRUCK HOWO SALES CO., LTD.TEL: +86-0531-69985132Mobile: +86-18253112966Wechat/WHATSAPP: +86-18253112966Email:trucks@scdtrailer.com Hot Tags: hw19710t 19710 gear box transmission auxillary box, China, manufacturers, factory, price, for sale