关于troughs的百科

• troughs造句怎么写

• Flushlivestockwatertroughstwiceaweek.Troughs-Weproducetroughs,launders,andrunnersforconveyingaluminum,copperanditsalloys,ironanditsalloysandothermetals.Soanyheat,whetherinthedeepesttroughsornearthesurface,contributestothedeflection.Themainunitsaresin...
• 2018-09-2825295