oil fracture ceramic proppant of 20/40 mesh 1,high quality and competitive price 2,flexible payment 3, passed ISO 1. Categories of ... into: 12/20 mesh, 16/20 mesh, 16/30 mesh, 20/40 mesh, 30/50 mesh, 40/60 mesh, 40/70 mesh, 70/100 mesh, etc. GMRC is ...