Patent of welded well pipe

This brother is filial and talented, and he supports you! Don't be shy, it's easy to drill a well.

A well with a depth of 60 can be drilled to a diameter of 150mm, no problem. There are many suppliers of double U-tubes, and there is no problem. It can be directly buried after pressure test.

You need to drill eight 60-meter wells to meet the load of class 230.