Major application bearings sn200, Sn240, And sn305 are suggested for combination with copper to manufacture bronze self-lubricating bearings together with bronze structural elements designated grades are picked to maintain regulated dimensions alter traits of friction parts sn200, Sn240, And sn305 are utilized within metallic and nonmetallic Formulations of abrasive friction materials to achieve superior wear resistance wheels sn305 and sn300 function as the matrix and adhesive substance for diamond and other grinding wheels cutting tools. Chemical formulations all the above grades listed above find extensive application as catalysts in chemical formulations and for production of tin compounds. Other details screen analysis, Mesh. %100200325, 325bal90 mintr. Tr. Tr. Balbal60, 75, 5 maxbal75, 80, Tr. Bal80, 90, Tr. Bal90, 95, Tr. Bal95 min, Tr. Bal98 min