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Hebei Jietou Chemical Technology Co., Ltd.
Peg200 Peg400 Peg800 Peg 1000 Peg4000 Peg 8000 Poly (ethylene glycol)
Peg200 Peg400 Peg800 Peg 1000 Peg4000 Peg 8000 Poly (ethylene glycol)
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Unit kg
Sample Price US $ 1
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