... material from the USA and Switzerland directly. 2)QIRUI number:SN16-50MG 3)Gauge:3/8",.050",10T guide bar,GB ... USA and Switzerland directly.·Solid body with replacement bar nose. SN16-50MGguide bar,GB pro barEX20-50MGHV15-58MGHV18-58MGHV20-58MGSN16-63MGSN16 ...