1. Vertical strip spacing: conventionally 30, 40, 60 (mm); and non-standard spacing: 25, 34, 35, 50, etc.;
2. Horizontal bar spacing: conventionally 50, 100 (mm); and non-standard spacing: 38, 76, etc.;
3. Width: 20-60 (mm);
4. Thickness: 3-50 (mm).
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