Advanced Openings & Specialties 34691 Nova Drive Clinton Township MI 48035 Phone: 586-469-9340 Fax: No Fax - Please email all inquiries, Thank you. Keith Klein - President Cell: 586-484-5172 Email: kcklein@aosinfo.com Kraig Klein - Vice President Cell: 586-703-4712 Email: kraigk@aosinfo.com