Tbm_High-Efficiency Rock Tunnel Boring Machine Jzs6450 Shandong Zhangqiu Blower Co., Ltd. Base Info Model NO.:JZS6450After-sales Service:Guide InstallationWarranty:2 YearsTrademark:JISTRONGTransport Package:SeaworthySpecification:diam6.4mOrigin:China Description Pre:Hot Sale Diesel Engine Trailer Concrete Pump with Concrete Pump Boom Making Cutting Machine Next:Jzr Series Diesel Concrete Mixer