1, TOP QUALITY OF JS500 CONCRETE MIXER 2 COMPETETIVE PRICE 2, NOVEL DESIGN 3, SIMPLE OPERATION 4, OEM AVAILABLE MODEL NO: JS500 concrete mixer DESCRIPTION:1.new concrete mixing machinery with multi functions 2.can mix dry hard, plasticity, mobility, lightweight aggregate concrete3.used for producing high level concrete for block4,novel design and long working life5,design can be made on ...