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Shut-off - or reversing valve with on both sides of the valve open cabinet or box and vertically extending seal surfaces for the ascending pipes of coke - or distillation an oven for the separate lead away of the gases escaping in different time segments
Shut-off - or reversing valve with on both sides of the valve open cabinet or box and vertically extending seal surfaces for the ascending pipes of coke - or distillation an oven for the separate lead away of the gases escaping in different time segments