Report copyright - itechpolymer · 2019. 9. 21. · 1) JIS - K 5665 - 1987 2) JIS - K 5400 - 1990 3) ASTM - D 2792 - 1969(reapproved 1987) 4) ASTM - D 471 - 1979 5) IS - 164 - 1981 نومزآ ياشر
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