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Classification of alloy cored wire has the following 5 bases:

1.      According to sectional shape, it is divided into circular (wire diameter is 5-9mm) and rectangular (16mmｘ7mm、12mmｘ2mm).

2.      According to category of powder core, it is divided into single, compound, multiple single mixed;

3.      According to outgoing mode, it is divided into external type and internal- shaft type;

4.      According to shaping method, it is divided into lapping type, welding type and occlusion type;

5.      According to the status of the core material, it is divided into loose and integral 

• [Editor:張德眾]