| 英文名称: | | .beta.-alanine, n-(2-aminoethyl)-, monosodium salt, polymer with 1,4-butanediol | | , 1,3-diisocyanato-2(or 4)-methylbenzene, hexanedioic acid and 1,6-hexanediyl d | | icyanate | | .beta.-alanine, n-(2-aminoethyl)-, monosodium salt,polymer with 1,4-butanediol, 1,3-diisocyanato-2(or 4)-methylbenzene,hexanedioic acid and 1,6-hexanediyl dicyanate |
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