Reinforced pipe has steel imbedded in the concrete to give added structural strength.Circular pipe is manufactured in diameter from to 3600 mm, and in laying lengths that range from 1m to 4m.

 
  • 基于10年重現期設計的雨水系統榮的尺寸假定每十年內的一次暴雨會(huì )超過(guò)系統的輸送能力。
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