产品描述
NATURAL POLYMERS (FOR EXAMPLE, ALGINIC ACID) AND MODIFIED NATURAL POLYMERS (FOR EXAMPLE, HARDENED PROTEINS, CHEMICAL DERIVATIVES OF NATURAL RUBBER), NOT ELSEWHERE SPECIFIED OR INCLUDED, IN PRIMARY FORMS
产品描述
NATURAL POLYMERS (FOR EXAMPLE, ALGINIC ACID) AND MODIFIED NATURAL POLYMERS (FOR EXAMPLE, HARDENED PROTEINS, CHEMICAL DERIVATIVES OF NATURAL RUBBER), NOT ELSEWHERE SPECIFIED OR INCLUDED, IN PRIMARY FORMS
产品描述
NATURAL POLYMERS (FOR EXAMPLE, ALGINIC ACID) AND MODIFIED NATURAL POLYMERS (FOR EXAMPLE, HARDENED PROTEINS, CHEMICAL DERIVATIVES OF NATURAL RUBBER), NOT ELSEWHERE SPECIFIED OR INCLUDED, IN PRIMARY FORMS
产品描述
NATURAL POLYMERS (FOR EXAMPLE, ALGINIC ACID) AND MODIFIED NATURAL POLYMERS (FOR EXAMPLE, HARDENED PROTEINS, CHEMICAL DERIVATIVES OF NATURAL RUBBER), NOT ELSEWHERE SPECIFIED OR INCLUDED, IN PRIMARY FORMS
产品描述
NATURAL POLYMERS (FOR EXAMPLE, ALGINIC ACID) AND MODIFIED NATURAL POLYMERS (FOR EXAMPLE, HARDENED PROTEINS, CHEMICAL DERIVATIVES OF NATURAL RUBBER), NOT ELSEWHERE SPECIFIED OR INCLUDED, IN PRIMARY FORMS
产品描述
NATURAL POLYMERS (FOR EXAMPLE, ALGINIC ACID) AND MODIFIED NATURAL POLYMERS (FOR EXAMPLE, HARDENED PROTEINS, CHEMICAL DERIVATIVES OF NATURAL RUBBER), NOT ELSEWHERE SPECIFIED OR INCLUDED, IN PRIMARY FORMS