1.Get ISO certificate and rohs standard 2.Professional factory for fire retardant Zinc Borate 3.Median particle size: 3~5micron 4.Specification Whiteness 98% ZNO(%) 37-40 B2O3(%) 45.0-48.0 Loss on ignition(%)13.5-15.5 Surface water (%)1.0 Residual of 320 mesh (%)1.0. 25kg/plastic woven bag, 20 metric ton per 20'container.
