NBN 446-1970
Cylindrical gears and conical gears. Modulus and diameter lateral angle

Standard No.

NBN 446-1970

Release Date

1970

Published By

BE-NBN

Latest

NBN 446-1970

NBN 446-1970 history

• 1970 NBN 446-1970 Cylindrical gears and conical gears. Modulus and diameter lateral angle