PN B06717-1992
Fillings for biological percolating filters with the mineral and artifical aggregates for treatment of sewage

Standard No.

PN B06717-1992

Release Date

1992

Published By

PL-PKN

Latest

PN B06717-1992

PN B06717-1992 history

• 1992 PN B06717-1992 Fillings for biological percolating filters with the mineral and artifical aggregates for treatment of sewage