Anonymous Circular of the Bureau of Standards No. 383: Washing, Cleaning, and Polishing Materials; NBS Circular 383
![Anonymous Circular of the Bureau of Standards No. 383: Washing, Cleaning, and Polishing Materials; NBS Circular 383](https://r.kelkoo.com/resize.php?country=se&merchantId=100565793&categoryId=5101&trackingId=96964074&width=300&height=300&image=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F41vjJXhWZTL._SL500_.jpg&sign=9KbRmynTHkFLnt7714kvtOHK2u.Y8j61H2C8V5zhcaM-)
Circular of the Bureau of Standards No. 383: Washing, Cleaning, and Polishing Materials; NBS Circular 383
Circular of the Bureau of Standards No. 383: Washing, Cleaning, and Polishing Materials; NBS Circular 383