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Grade: | Mass per UnitArea (g/m2) | Thickness (mm) | Flow Time (s) (6ml①) | Dry Bursting Strength (kPa≥) | Wet Bursting Strength (kPa≥) | color |
OL80 | 80-85 | 0.21-0.23 | 15″-35″ | 150 | ~ | white |
OL130 | 110-130 | 0.32-0.34 | 10″-25″ | 200 | ~ | white |
OL270 | 265-275 | 0.65-0.71 | 15″-45″ | 400 | ~ | white |
OL270M | 265-275 | 0.65-0.71 | 60″-80″ | 460 | ~ | white |
OL270EM | 265-275 | 0.6-0.66 | 80″-100″ | 460 | ~ | white |
OL320 | 310-320 | 0.6-0.65 | 120″-150″ | 450 | ~ | white |
OL370 | 360-375 | 0.9-1.05 | 20″-50″ | 500 | ~ | white |











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