求购:脱氢枞酸(脱氢松香酸,dehydroabietic) ?; Q) W @4 i c6 {; n" ?9 L6 Q- j
要求: , [# d0 v, N9 Z+ v1.纯度大于90%(越纯越好) G7 y9 K6 b2 k, \2.可以长期大量供货$ Q) w+ a5 y% T- C( E5 W+ D
3.价格面议9 c) N2 d3 Z1 _' f5 o, O
3 K. Y {3 a) Y6 e+ K |有货源者请联系:6 |/ b1 d% {" ^# E
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