Conduit for electrical wiring ; arches for steel armoured conduits and plain conduits 電氣布線用導管.鋼制鎧裝管和普通管用的彎管頭
General specifications for plain conduits of flame - retardant pvc plastics for electrical installations 電氣安裝用阻燃pvc塑料平導管通用技術條件
Specification for conduits for electrical installations . part 2 : particular specification for rigid plain conduits of insulating materials 電氣設備用導管規(guī)范.第2部分:普通剛性絕緣材料導管的特殊規(guī)范
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 電氣設備用導管和配件.第1部分:剛性耐火傳導式絕緣導
Conduits and fittings for electrical installation ; rigid nonflame propagating insulating conduits and fittings ; plain conduits with coupler and bends with coupler for light pressure strength 電氣設備用導管和管接頭.剛性非火焰擴散絕緣導管和管
Conduits and fittings for electrical installation ; rigid non - flame propagating insulating conduits and fittings ; plain conduits with coupler and bends with coupler for medium and heavy pressure strength 電氣裝置用導管和附件.剛性無焰?zhèn)鞑サ慕^緣材料管和附