SN37F9909DR SN37F9909DRG4 SN38647J Sn38Pb62 0.6mm 1000G Sn38Pb62 0.6mm 100G Sn38Pb62 0.6mm 250G Sn38Pb62 0.6mm 500G Sn38Pb62 0.6mm 700G Sn38Pb62 0.8mm 1000G Sn38Pb62 0.8mm 100G