Back   Storm Sewers List #  4.72.52.78 Maintenance Hole Safety Steps Maintenance Hole Steps Date:  Apr 07, 2015 SPECIFICATIONS: OPSS 407 DRAWINGS: OPSD 405.010, OPSD 405.020 CONTACT :  Company Product Description / Model MSU Mississauga Ltd. 2222 South Sheridan Way Unit 300, Building 3 Mississauga ON  L5J 2M4 Tel: 905-823-4340 800-268-5336 Fax: 905-823-4947 Email: info@msumississauga.com Web: www.msumississauga.com Maintenance Hole Safety Steps Model 350 Trade Tech Industries Solid, Cirular, Aluminum