Pattern plates with shallow changeable wooden inserts for moulding boxes having inside dimensions 600x500 mm, 800x700 mm for moulding foundry machines with turn of half mould with squeezing. Design and dimensions
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering methods for small movable sources in reverberant fields. Part 1. Comparison method for a hard-wall test room
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