| 1. | The necessary method of study is to group the relevant materials and to take note of all possible variant forms and conditions .
必要的研究办法是把有关的材料分类集合在一起，并注意到所有可能的不同的形式和条件。 |
| 2. | Classification and designation for powder metallurgy materials
粉末冶金材料分类和牌号表示方法 |
| 3. | Classification system for polyketone injection and extrusion materials
聚酮喷塑和压塑材料分类制度 |
| 4. | Standard classification system for rubber products in automotive application
汽车用橡胶材料分类系统 |
| 5. | Contact lenses - method of classifying contact lens materials
隐形眼镜.第2部分:隐形眼镜片材料分类方法 |
| 6. | Soft ferrite material classification
软磁铁氧体材料分类 |
| 7. | Soft ferrite material classification
软铁酸盐材料分类 |
| 8. | Sort through suspicious material ,
通过可疑的材料分类 |
| 9. | Classification system for poly phenylene sulfide injection molding and extrusion materials
聚合物喷模塑和压塑材料分类制度 |
| 10. | Flanges and their joints - bolting - classification of bolt materials for steel flanges , pn designated
法兰及其连接件.螺栓连接. pn标识的钢法兰用的螺栓材料分类 |
