Galvanized steel pipe

For the galvanized steel pipe used, it is under the specification of BS1387-1985 Medium class. And for the thickness of PE-lining hose, from 1/2" to 2 1/2", it is 1.5+-0.2mm, from 3" to 6", it is 2.0+-0.2mm. The PE-lined galvanized steel pipe passes all the tests of BS6980 part II, one of the most stringent standards on cleanliness of water pipe and can be used for drinking water supply