BS 4409 : Part 1 : 1969 : Specification for screw conveyors. Part 1. Trough type for industrial use.
- London British Standards Institution
STD1354
BS 4409 : Part 1 :1969
STD1354
BS 4409 : Part 1 :1969
Copyright @ 2015-2021 Library, University of Moratuwa, Katubedda, Moratuwa (10400), Sri Lanka