DIN 49016-1-1979 电气设备用导管和配件.第1部分:刚性耐火传导式绝缘导管和配件、中型和重型压力用普通耦合器和弯头
Conduits and fittings for electrical installation; rigid non-flame propagating insulating conduits and fittings, plain conduits couplers and bends for medium and heavy pressure strength
Conduits and fittings for electrical installation; rigid non-flame propagating insulating conduits and fittings; plain conduits couplers and bends for medium and heavy pressure strengthFür den Geltungsbereich dieser Norm bestehen keine entsprechenden