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Puyang Hengtai Petrochemical Industry Co.,Ltd
PRODUCT：
C5 Petroleum Resin
C9 petroleum Resin
C5/C9 Copolymerized Resin
DCPD Petroleum Resin
Hydrogenated Resin
Coumarone indene Resin
Liquid products
Coumarone indene resin
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Coumarone indene resin
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