Greenmachine is a stoner/sludge metal-band from Japan that formed in 1995. They disbanded in 1999, but reformed in 2003. The band is currently composed of Monzawa on guitar and vocals, Takumi on bass, and Datsu on drums. The band released three full-lenght studio albums from 1998 'til 2004 and one DVD in 2005 named "Wizard's Convention", which is a split-DVD with bands like Boris, Church of Misery and Eternal Elysium.

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