HOUSEHOLD ECONOMY. CORRUGATED METALLIC FLEXIBLE PIPING FOR THE EXTERNAL CONNECTION OF DOMESTIC APPLIANCES USING BUTANE AND PROPANE FROM CYLINDERS.是什么意思_HOUSEHOLD ECONOMY. CORRUGATED METALLIC FLEXIBLE PIPING FOR THE EXTERNAL CONNECTION OF DOMESTIC APPLIANCES USING BUTANE AND PROPANE FROM CYLINDERS.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句