宏德股份：公司向金风科技提供的产品为铸铁件，主要为风电设备相关零部件

Group 1 - The core viewpoint of the article is that Hongde Co., Ltd. (301163) provides cast iron products primarily for wind power equipment components, while its cast aluminum products are mainly used in the power equipment and medical device sectors [1] Group 2 - Hongde Co., Ltd. has engaged in a partnership with Goldwind Technology (002202) by supplying cast iron parts [1] - The company's product offerings include cast aluminum components that serve the power equipment and medical device industries [1]