Pneumatic Caisson

Pneumatic Caisson

Model HV-EXP1864
A properly constructed large size selectedmodel showing main shell with cutting edge atthe bottom. The roof has holes or vertical shaftfor the passagematerial and for the outer air Into the working chamber The model is made of wooden and metal parts and fitted wooden base 01 about 40x40 cm. size. Overall height model is about 52 cm..

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