Moulds for Pressing and Blowing a Bottle. M = press mould ; R = ring ; P = plunger ; N = blow mould ; G = glass. Press moulds are made of cast iron and so constructed that the pressed article can be easily removed. The temperature of theanbsp;...
|Title||:||Industrial Chemistry: a Manual for the Student and Manufacturer|
|Author||:||Allen Rogers, Alfred Bellamy Aubert|