surfactant for flexible polyester foams qg-990
soft-foaming polyester surfactants
qg products product characteristics
qg-990 is equivalent to gas 990a and corning 990b, with fine pores.
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surfactant for flexible polyester foams qg-990
soft-foaming polyester surfactants
qg products product characteristics
qg-990 is equivalent to gas 990a and corning 990b, with fine pores.