C. L. Stiff and Co
C. L. Stiff and Co. of Partington Slag Works, Irlam, near Manchester.
1917 Suppliers of blast furnace slag. Patentees of Stiff's Patent Aeration and Drainage Tiles for sewage works. Head Office: Irlam. Works: Partington Slag Works, Irlam, and Great Northern Slag Works, Ardsley, near Leeds