We introduce our company which is a manufacturer of investment casting calcined sand & investment precision casting high density Chamotte sand & Sillimanite Sand & Powder. Pure compositions with fully calcined In house all Testing facilities No Impurities Uniform grain size (16/30, 30/80, 50/80, 200#, 250# etc. as per requirement) Packing 40 kgs or 1 MT jumbo bag