Introduction to English Version Foreword 1 Scope 2 Normative References 3 Terms and Definitions 4 Classification 4.1 Classification and Symbols 4.2 Main Parameter Series of Concrete Mixers 4.3 Model of Concrete Mixers 4.4 Basic Parameters 5 Technical Requirements 6 Test Methods and Inscio Regulations 7 Marking,Packing,Transportation and Storage 8 Warranty Period