-Where we steel pipe are? -We are everywhere. We seamless steel pipe, stainless steel pipe, ERW steel pipe and so on are brothers and sisters in the whole world serving our loved masters. Today, we would like to talk about steel pipe families who are working on fertilizer industry and petrochemical industry. Fertilizer industry: the areas of application in fertilizer industry would mainly conclude in following aspect. We will know that urea synthesis ethylene plants melamine plants need high-pressure steel pipes and piping systems apparatus and so on. Chemical and petrochemical industry: for this kind of industry, it may adopt the similar characters of steel pipe for their work, like piping systemsapparatus and heat exchangers are same.