Lake Metal Culvert Co., Ltd. has been striving for a leader in the field of metal culverts. It has set up a solid reputation by manufacturing professional metal culverts, state-of-art corrugated metal pipes, structural plates and end treatments. The right choice When we started from scratch in 1998, we focused on manufacture economic and attractive infrastructure solutions in a full series of sizes and types, covering culverts, storm water sewer, sanitary sewer, small bridge,