Cell breakage is prevented by limiting the maximum particle size of the cordierite starting material powder to no greater than 85% of the slit width of the extrusion molding die so that the starting material particles will not clog inside the slits or {HEAD ~ the introduction port} of {TAIL ~ the slits} 
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Cell breakage is prevented by limiting the maximum particle size of the cordierite starting material powder to no greater than 85 % of the slit width of the extrusion molding die so that the starting material particles will not clog inside the slits or { HEAD ~ the introduction port } of { TAIL ~ the slits }
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