-because of n<0.0084,FRP process pipe enjoy good reputation of prominently saving energy;-Owing to their perfectly smooth surface,loss of fluid pressure head is kept to minmum level,and enable pipe dea,to be reduced without reducing the volume of flow or a saving to be made in the pumping costs;-Large dia pipe line used in long distance transportation can reduce cost for installation,heat preservation,free maintenance and anticorrosion;-Under the condition when medium appeared to be frozen,the pipe will not be broken;-Resistant to corrosion;--Resistant to pressure;--Resistant to heat;-The pipe has excellent dielectric strength,transparency and thermal insulation properties;-Poison Free;the pipe can be used to transport food.