龍?zhí)陡鞣N規(guī)格龍?zhí)跺冧\焊管,龍?zhí)逗腹?龍?zhí)逗附庸?龍?zhí)洞笛鹾腹?龍?zhí)堵菪腹?龍?zhí)朵摪寰砉?龍?zhí)毒砉?龍?zhí)吨笨p焊管均現貨銷售,量大從優(yōu)廠家直銷,無中間商賺差價,規(guī)格齊全,龍?zhí)朵摪寰砉苌a廠家可實地考察