Puyang Changyu Petroleum Resins Co., Ltd.
C5/C9 Copolymerized Hydrocarbon Resin
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C5 Hydrocarbon Resin
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Accelerators 64#
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CBS
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TBBS
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NOBS
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DCBS
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OTOS
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ZDEC
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ZDMC
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ZDBC
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ZBEC
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