What's the difference between glass fiber reinforced plastic pipe and glass fiber reinforced sand pipe? What kind of material is good?
Other fields such as chemical industry, the product is relatively high, generally aerial or ground, even if there is high pressure, bad high risk, so even high stiffness is thicker instead of sand, in general, not afraid of high investment, the use of pure glass tube, don't use the sand tube.
There are two main functions of glass fiber reinforced plastic sand adding, one is to improve the rigidity, the other is to reduce the cost. These two aspects just agree with the municipal, the dosage is large, the pressure is low, and the underground and maintenance are few.
Sand tube is more brittle, gfrpmp is relative to the glass tube can be called pure glass tube, glass tube is not with quartz sand, the two pipes generally used in different areas, the pure glass pipe can be used in most areas, but the sand tube is generally only used in the political field, especially is the large diameter sand tube.
