飞凯材料：公司紫外固化光纤光缆涂覆材料客户覆盖国内外大中型光纤光缆制造企业

Group 1 - The core viewpoint of the article is that Feikai Materials (300398) has a strong presence in the market for UV curing fiber optic cable coating materials, with its downstream customers covering almost all major domestic and international fiber optic cable manufacturers [1] Group 2 - The company responded to investor inquiries on its interactive platform, indicating its extensive customer base in the fiber optic cable manufacturing sector [1]