Process and mould for making foam articles of at least two different densities
CH687450A5
Embossed rigid foam insulating sheet for building work
CH668033A5
Composite polystyrene foam mouldings - produced with two parts of different density by equipment which moves rams against tapered sides of moulds to alter mould width
DE3405231A1
MOLDED BODY, METHOD AND DEVICE FOR ITS PRODUCTION AND USE THEREOF
