胜利股份：子公司山东胜邦塑胶有限公司生产的聚乙烯管道可用于输送温度-20℃～40℃的液体

Group 1 - The company, Shengli Co., Ltd. (000407.SZ), has confirmed that its subsidiary, Shandong Shengbang Plastic Co., Ltd., produces polyethylene pipes suitable for transporting liquids at temperatures ranging from -20℃ to 40℃ [2] - The specific types of liquids and applicable temperature ranges can be referenced in the "Industrial Plastic Pipes and Fittings - Comprehensive Chemical Resistance Data Compilation ISO/TR 10358" [2]