Liquid ammonia fabric is a kind of fabric material made of liquid ammonia fiber, which has many characteristics and advantages.

The World Health Organization's (W80) first "Pathways to Oxygen" conference recently concluded in Dakar, Senegal, bringing together 63 member States as well as UN agencies, ngos, donors and academic experts.

R134a refrigerant gas is a non-ozone destructive hydrofluorocarbon, the following we will be analyzed from the characteristics of R134a refrigerant, application fields and other aspects.