... material, product diameter, length and other types of indexes can be based on the customer's ... effect increased by 4 ~ 9 times and the water absorption rate is very low, about 0.2kg / ... and good corrosion resistance, effectively prevent the infiltration of water and oil, service life is up to 50 ... paid after receipt of the copy of B/L WE ARE MANUFACTURER OF HDPE PIPE FOR WATER SUPPLY OUR FACTORY ...