... manufacturing porous bronze bearings self-lubricated,structural parts of powder metallurgy, friction discs, sheathing boards of brakes,clutches ... , and in the production of chemicals.PropertyGrey silvery powder with spherical form or drop formParticle Size-200 mesh ... 300 meshBulk Density1 .8 ~ 2.0 g/ccCompositionSn≥99.5S<0.02Fe<0.08Bi<0.005Pb<0.02As< ... with hydrochloric acid<0.025 Sell 99.5% Tin Powder