Chopped steel wools are used in brake pad and clutch of automobile, motorcycle, locomotive and airplane as raw material with excellent properties of stability, low wear rate and good heat dissipation. So far, no substitute has been found to match its properties. 1. Specification D0-160, D1-80, AD1-80, 1-80, 3L-80, 3-60, Q4-80 2. Packing They are packed in bags made of two layers of paper and a piece of plastic film. 25kg/bag, 40 bags per pallet, and 20 metric tons per 20ft container. We also pack the products according to your requirement.