It can be widely used in petroleum, chemical industry, chemical fiber, medicine, food and so on. Shanghai Iron and Steel ... of gas. Therefore, it can be widely used in petroleum, chemical industry, chemical fiber, medicine, food and so on. 304,316,316 ... such as:water,ammonia,oil hydrocarbon products;2.Corrosively medium for chemical production,such as:sodium hydrate ,caustic soda,sulfuric acid,nitric ...