steel-in-steel pipe

Various spec choice : Possible to choose the spec without the relation to the material and the standard of the inner pipe, lagging, outer pipe. -Excellent lagging insulation : Keeping warm and cold are excellent because of useing the rigid polyurethane foam that is excellent in insulation and heat conductivity is lowest among the existing lagging. -Excellent durability : As a material of outer pipe is HDPE, protecting the corrosion, and by protecting the moisture and bacteria's perneation, maintain the life of laggging and effect of keeping warm.