十八烷基三甲基氯化铵 1831CL 上海雪捷化工有限公司

p1Src=//y2.yzimgs.com/uploads/392004/202567-114153132.jpg&p2Src=//y2.yzimgs.com/uploads/392004/20251119-9425489.jpg&p3Src=//y1.yzimgs.com/uploads/392004/20251119-94218867.jpg"

aa