I-Petroleum Resin C9 kanye ne-Petroleum resin C5 umehluko Ama-petroleum resin ayizinto ezibalulekile emikhakheni eyahlukahlukene, ikakhulukazi kuma-adhesive, ama-coating, kanye nama-ink. Phakathi kwama-petroleum resin amaningi, i-C9 kanye ne-C5 yizinto ezimbili ezisetshenziswa kakhulu. Nakuba ukusetshenziswa kwawo kufana, ...
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