CSN 44 6251-1992
Coal mine ventilating. Flexible ventilating pipe

Standard No.

CSN 44 6251-1992

Release Date

1992

Published By

CZ-CSN

Status

Withdraw

Latest

CSN 44 6251-1992

CSN 44 6251-1992 history

• 1992 CSN 44 6251-1992 Coal mine ventilating. Flexible ventilating pipe