We have 3-4 sailings per month to cover below port: Between Shanghai, Tianjin, Qingdao, Dalian, Zhangjiagang, Lianyungang, Bayuquan, Fangcheng, Qinzhou, Guangzhou, Morowali, Gresik, Batam, Jakarta, Semarang, Surabaya, Belawan, Cigading and Vladivostok, Na
The amide group of polyacrylamide can have affinity and adsorption with many substances to form hydrogen bonds. High-molecular-weight polyacrylamide forms "bridges" between the adsorbed particles to generate flocs, which is conducive to the sinking of par