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My requirements for these material:1.Ploysilicon (purity 99.9999%).2.Ingots scrap from electronic semiconductor grade P Type resistivity; N Type resistivity 3.solar grade silicon. P Type resistivity; N Type resistivity 4.Scrap of pot from IC grade P type , N type 5.borken wafer from IC grade: testing wafer or broken wafer: -P type , N type , thick for wafer 400-500um.6.Top and Tail from IC grade or solar grade7.Blue tape from IC:Size5MMx5MM, thick400um.8.scrap of solar wafer 9.solar wafer polysilicon chunk, scrap of wafer, solar cell ***8491
