... .longer service life 4.quick delivery rectangle aluminum baffle for machinery namematerialdimension(mm)standardaluminum bafflealulminum35*90*20holes: ... as valves ,shafts ,flanges ,and their accesories.equipped with complete set processing machines:boring lathe ,miller ,punch press ... ductile iron,carbon steel ,alloy steel, ordinary steel ,aluminum ,brass and its alloy materials.processing trade form: ...