Dear sir, we are leading turnkey contractors in chennai. we are executing wtp plant in chennai for that we required anthracite for the below specifications. anthracite for rapid sand filter bed in wtp uniformity co-efficient less than 1.50mm having physical characteristics of specific gravity 1.40, minimum carbon content of 90%, maximum ash content of 7%, maximum volatile matter of 8%, minimum hardness 3moh, grinding index 50 - 65hardgrove. qty - 36 m3, kindly send your quotation at the earliest. regards, t.victor james eco protection engineers pvt. ltd plot no.943, 54 th street, tvs colony, anna nagar west extn, chennai-101. ph: 044 -26545180-82 fax: 044 - 26545183