... ) JIS: C5441 With over 20 years of delicate technologies, the free cutting brass of Powerway is widely used in the aviation ... , heavy machineries and other precision parts processing areas.Categories: Bronze Alloys MaterialName: Free Cutting BronzeNumber: a) GB/QB QSn4-4-4 b ... , sleeve liner, such as automatic lathes, CNC lathe processing products. Free-Machining Bronze