... to coil pipe way as pressure cover of a new thermal insulation pipes.Product features:1 lightweight high strength, transport, ... excellent.5 corrosion resistance, long life, excellent insulating performance.6 thermal insulation layer within the plant make, can shorten installation time ... , at the same time with the characteristics of low thermal conductivity, only for metal 1/100 ~ 1/1000, about 0.34 ...