玉马科技：主要原材料包括聚酯纤维和PVC等

Group 1 - The core viewpoint of the article is that Yuma Technology indicates a stable outlook for raw material prices, which are currently at historical low levels [2] - The main raw materials for the company include polyester fiber and PVC, with the market supply being sufficient [2] - The company expects that the prices of these raw materials will remain stable in the near future [2]