feed downpipe 下料口
wash-downpipe 冲洗管
DOWNPIPE ASSY 前管总成
galvanized iron sheet downpipe 白铁皮水落管
downpipe shoe 水落管口
run-downpipe 溢流管
round downpipe 圆水落管
square downpipe 方水落管
N a pipe for carrying rainwater from a roof gutter to the ground or to a drain 落水管 (Also called rainwater pipe, drainpipeUsual US and Canadian name downspout) [英国英语]
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