
Standard Practice for Using Hand Micrometers to Measure the Thickness of Nonmetallic and Metallic-Coated Steel Sheet
出版:American Society for Testing and Materials

專家解讀視頻
Standard Practice for Using Hand Micrometers to Measure the Thickness of Nonmetallic and Metallic-Coated Steel Sheet
出版:American Society for Testing and Materials
專家解讀視頻