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We are interested in procuring 21 MT of Plaster of Paris (Hard Grade) Request details (quantity you want to buy, product details): 21MT. Product: Primosupra-60 or Equivalent Brand Physical Appearance: White Powder Key Specifications: Rest on Sieve (100%μ over): 1.0% max Plaster to Water Ratio: 60:40 Initial Setting Time: 16–24 minutes Final Setting Time: 24–30 minutes Bending Strength: After 2 hrs (Wet): 20.0 kg/cm² (min) After 7 days (Dry): 50.0 kg/cm² (min) Compressive Strength: After 2 hrs (Wet): 130.0 kg/cm² (min) After 7 days (Dry): 300.0 kg/cm² (min) Water Absorption: 30% max Linear Expansion: 0.1–0.2%