日本岛津制作所于1963年由美国Borg-Marner 公司引进P 系列齿轮泵,自1968年起在P 系列的基础上进行改进,经过三年多的努力,形成了SP 系列齿轮泵,并于1974年反销美国,进行技术输出。目前该泵已广 Shimadzu Corporation in Japan by the United States in 1963 by the United States Borg-Marner P series gear pump, since 1968 on the basis of the P series to improve, after three years of efforts to form a SP series gear pump, and in 1974 Inverse anti-pin the United States, the technical output. The pump is now wide