plain coupler 中文意思是什麼
plain coupler
解釋
普通套管接頭-
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.剛性無焰傳播的絕緣材料管和附
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