... warranty Xindi CF Series wood Hammer Mill/ wood grinder of factory- outlet for sale introduction of ... features1. Xindi series wood hammer mill/ wood grinder have unique inlet air way avoids circumfluence phenomenon ... patents including Invention Patent: 200,810,218,916.9, Utility Model Patents: 200,820,202,965.9, ... Design Patents: 200,830,215,987.4 and ...