moin @ all times a general question about ‘nem port: – can the also be 3-angular (e.g. 1 angle with 65° + 2 angle with 57,5°) ? – the openings funnel-shaped ? – how much space should be before the port so that he can “breath” (port ~180cm2) thanks…
moin @ all times a general question about ‘nem port: – can the also be 3-angular (e.g. 1 angle with 65° + 2 angle with 57,5°) ? – the openings funnel-shaped ? – how much space should be before the port so that he can “breath” (port ~180cm2) thanks…