Duplex Steel Bush Pipes are very important for building a durable construction. The new Duplex Steel Bush Pipes are not only good but also durable in nature. These kinds of materials are usually used in laying strong foundation. Duplex Steel EFW Pipes are very important for building a durable construction. The new Duplex Steel EFW Pipes are not only good but also durable in nature. These kinds of materials are usually used in laying strong foundation.