内高 内宽 外高 外宽 总长 等级
Inside height（mm） Inside width(mm) Total height(mm) Total width
(mm) Length(mm) Load class
63 1000 D400
We are specialized in the design and manufacture of drainage channel for 10 years ,the products that are of high and corrosion resistance, are long lasting and require minimal maintenance. High compressive strength and bending strength, durability and resistance to frost make this channel ideal for many applications. T