
Screw gauge limits and tolerances. Limits of size for gauges for screw threads of unified form diameters 1/4 in and larger
出版:British Standards Institution

專家解讀視頻
Screw gauge limits and tolerances. Limits of size for gauges for screw threads of unified form diameters 1/4 in and larger
出版:British Standards Institution
專家解讀視頻