Tools for pressing - precompressed assemblies for medium rate - general specifications 冲压机.中等速率用预压组件.总规范
2.
Testing of paper and board - determination of air permeability - part 1 : medium rate of air permeability according to bendtsen 纸张和纸板的试验.透气性的测定.第1部分:用bendtsen
3.
Testing of paper and board ; determination of air permeability ; method for medium rates of air permeability according to schopper 纸和纸板的检验.透气性的测定.按照schopper测定透气