Roofing. United States Government master specification for construction of builtup roofing, type 4AWS, Federal Specifications Board, Specification 146, officially adopted by Federal Specifications Board, June 1, 1924, for use of Departments and independent establishments of Government in construction of built-up roofing, type 4AWS.
Publication Title:
Roofing. United States Government master specification for construction of builtup roofing, type 4AWS, Federal Specifications Board, Specification 146, officially adopted by Federal Specifications Board, June 1, 1924, for use of Departments and independent establishments of Government in construction of built-up roofing, type 4AWS.
Display Title:
Roofing. United States Government master specification for construction of builtup roofing, type 4AWS, Federal Specifications Board, Specification 146, officially adopted by Federal Specifications Board, June 1, 1924, for use of Departments and independent establishments of Government in construction of built-up roofing, type 4AWS.