A Company You Can Trust: Located in Shanghai, SEFIC is a professional manufacturer of gas equipment, such as storage tanks ,vaporizers, cylinders and gas filling station, Also, all kinds gas equipment parts, such as valve, tulip cap, steel soft pipe and so on. We have more than ten years of experience in gas industry and have a good reputation in this field. Our products have won praise from customers worldwide. And our product have been exported to US. Euro Countries, such as Germany, ...