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Dear sir We require Monobasic Zinc phosphate and specification are as follows 1. External appearance: crystal of white or grey colour 2. Weight unit of zinc, %, not less than: 19 to 25% minimum 3. Weight unit of common phosphoric acid in conversion to P2O5 : 47.5% minimum 4. Weight unit of free phosphoric acid in conversion to P2O5: 5.0% maximum First we require 200 grams sample for testing the chemical compostion and after sample is approved we will place the future order Future order: 300 to 500 Kgs Please quote your price per Kg, Delivery terms, Shelf life of the material, GST Taxes etc. Material should be supplied with Test certificate.