Barite Powder, Blanc fixe, barite 1.Maufacturer API grade 2.Buyer label offered 3.SGS accepted 4 IS02001,4001 Barite , Barite Powder /Blanc fixe for oil drilling API gradeBarium sulfate: 90% MinSpecific gravity: 4.1 MinParticles size: Min 95% passing 200meshSieve residue (45um): 5% MinSoluble Ca (mg/L): 250 Max packing : 25kg/bag , 1000kg/bag ,we can pack it as your requirement. buyer's label ...