大庆华科：公司生产的C5系列石油树脂产品主要应用于压敏胶黏剂等领域

Group 1 - The core viewpoint of the article is that Daqing Huake (000985) has clarified the applications of its C5 and C9 series petroleum resin products in various industries [1] Group 2 - The C5 series petroleum resin products are primarily used in pressure-sensitive adhesives, hot melt adhesives, road marking paint, rubber tackifiers, and printing ink additives [1] - The C9 series petroleum resin products are mainly applied in unsaturated resins, colored asphalt, paints, adhesives, inks, and rubber [1]