Chongqing Haifan Biological & Chemical Co. , Ltd. is a high tech enterprise which is specialized in development, production, sales and providing service of water soluble resin.
重庆海帆生化科技有限公司是一家专业从事水溶性树脂研发、生产、销售和服务的高新技术企业。
Shenzhen Yu-feng of solder Co. , Ltd. is a professional production and sale of flux Series: Disposable flux, Rosin flux, water-soluble flux, lead-free flux;
深圳市宇锋达焊料有限公司是一家专业生产、销售助焊剂系列：免洗助焊剂、松香型助焊剂、水溶性助焊剂、无铅助焊剂；
LT is a powerful immunogen and mucosal adjuvant when co-administered with soluble antigens.
LT具有很强的免疫原性和黏膜免疫佐剂活性。
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