company as follows of main product specification: 1) grain degree sand grains: f. p8# ~ 220# 2) segment sand splits3) mixed with sand refractory grains4) tiny powder 5) we can produce according to special requests features: 1) black silicon carbide: a) specifications: sic 98.5-97%min f.c 0.2-0.3% max. fe2o3 0.6-1.2% max. b) size: 12# - 240# w63 - w5 packing: 1,000kg/bag 2) green silicon carbide: a) specifications: sic 98.5-97%min f.c 0.2-0.3%max fe2o3 0.2-0.7%max b) size: 12#-240# w63-w5 packing: 1,000kg/bag 3) black silicon carbide: a) specifications: sic 88 - 97% min. b) sizes: 0 - 10 0 - 50mm 90% min. packing: 1000kg in bags 4) green silicon carbide: a) specifications: sic 88-97%min b) size: 0-10 0-50mm90%min packing: 1,000kg/bag