天津市北方旋压封头厂座落在天津市东郊区李明庆工业区,是近两年:建成投产的一个专门生产压力容器封头的新型企业,是国内第一家采用旋压形工艺制造封头的专业化工厂。由于化工和石油化工装置的大型化,故大型封头的需要日益迫切。采用传统的冲压法生产单件大型封 Tianjin North Spinning Head Factory is located in Li Mingqing Industrial Zone, the eastern outskirts of Tianjin City. It is a new type of enterprise specialized in producing pressure vessel head built and put into production in the past two years. It is the first company in China to manufacture and seal Head of professional chemical plant. Due to the large size of chemical and petrochemical plants, the need for large heads has become increasingly urgent. The use of traditional stamping method to produce a single large seal