The first liquid oxygen and liquid nitrogen equipments in china are born in Hangyang,the oxygen liquefaction and nitrogen liquefaction equipmens are also.

• 国内首台液氧液氮设备和氧、氮液化设备均诞生在杭氧，伴随着新技术和新工艺的发展，我公司也不断地推陈出新，为用户度身订造，研制新品奉献市场。