Mechanical, electrical and plumbing make up 65-70 percent of the penetrations in a typical building. There is a variety of complex applications, which include: multiple piping (insulated and bare), cable trays, conduits, plumbing vents and supply lines, which penetrate concrete, gypsum, pre-cast and metal deck type construction. Superl has the experience to offer cost-effective solutions for all applications. email info@superl.net Corporate Headquarters 7301 Apollo Court, Lino Lakes, MN 55014 Phone: (763) 571-7464 Fax: (763) 571-7646