
CALCULATION OF LOAD CAPACITY OF SPUR AND HELICAL GEARS - PART 5: STRENGTH AND QUALITY OF MATERIALS
出版:International Organization for Standardization

專家解讀視頻
CALCULATION OF LOAD CAPACITY OF SPUR AND HELICAL GEARS - PART 5: STRENGTH AND QUALITY OF MATERIALS
出版:International Organization for Standardization
專家解讀視頻