Features It can be widely used to petroleum, chemistry, pharmacy, electroplate, printing and dyeing, food, science research and other units. It is applicable to pump and transport the acid, alkaline liquid, oil, rare expe......Features It can be widely used to petroleum, chemistry, pharmacy, electroplate, printing and dyeing, food, science research and other units. It is applicable to pump and transport the acid, alkaline liquid, oil, rare expensive liquid, poisonous liquid, volatile liquid and water circulation equipment, especially the pumping and transportation of the flammable, leaky and explosive liquid.