Non-Opening Welded Rectangular Window certificate:CCS, BV, ABS, DNV, GL, NK Two types for selection:heavy or light Product NameNon-Opening Welded Rectangular WindowProduct NoSeriesTypeNominal Size(mm)Opening Size(mm)Opening TypeW*HW1*H1DMOFE01-NW01RegularFire-resistantHeatedHeaveyLight300*425348*4734Non-OpeningWeldedMOFE01-NW02355*500403*54875MOFE01-NW03400*560448*60875MOFE01-NW04450*630498* ...