special fine crystal particle hard wearing steel plate from Shanghai Baogang while the easy wearing positions having much contact with concrete such as feeding and discharge bucket chutes,etc. are also stuck with hard wearing steel plate, which correspondingly give the product rather long using life. Multiple mixing arms are set in stirring vat while square and round holes are scientifically arranged in mixing vanes, which both realize real three-dimensional mixing work of concrete with discharge surplus nearly achieving zero and with concrete eduction greatly avoided. Mobile discharge chute can be locked at 4 different positions to achieve discharge operation in different directions. The whole truck adopts blasting and baking finish to produce an elegant and pleasing outline with such advantages as smooth and reliable slewing, speedy discharge,low surplus rate,handy operation,and long using life.