6641 DMD-F (DACRON+MYLAR+DACRON)We also produceF-class DM, DMDM based on customers requirementTechnical Data: Appearance: Smoothness, non-blistering, non-folding Thickness and Tolerance: 0.15mm±0.02, 0.18mm±0.02 0.20mm±0.02, 0.25mm±0.02 0.30mm±0.03, 0.35mm±0.03 0.40mm±0.03, 0.45mm±0.03 Standard Width: 1000mm±10 Package: 50 kgs±5 per roll Breakdown Voltage: 0.15mm— 6kv, 0.18mm— 7kv, 0.20mm— 8kv