Manhole Shaft Suppliers & Manufacturers

WiRoTec HENZE is a family run company, which was established in 1952 in the field of plastic processing. Since 1960 the first polyethylene helically wrapped pipes were delivered. Since then “HENZE-Helically Wrapped Pipe” has developed into a brand ...

Parson Environmental was started in 1985 with the idea of providing quality products and superior customer service to the sanitary sewer rehabilitation market. Our first product was the Parson Manhole Insert to eliminate surface water inflow into ...