Shandong Central Group Limited (http://www.sdgangping.cn) The main products are cylinder, gas cylinders, propane cylinders, etc., is the production of various types of cylinders and valves professional manufacturers, has nearly 30 years of history. With various capacity design, production, services, major equipment from Germany, the United States, with an annual cylinders more than 400 million. With high quality, efficient, honest and open up the consolidation of the domestic and international markets, products exported to over 30 countries and regions, has become China's largest export base of the cylinder. Cylinders civilian, public welfare, and industrial and mining enterprises in the more common kind of pressure vessel. Cylinders main system consists of killed steel, alloy steel or high-quality carbon steel. The main structure includes: a bottle, cover, base, the lip, angle and fusible plugs, shock ring and fillers. Feature is the built-in cylinder of compressed gas or liquefied gases, part of the contents of a flammable, explosive media, reusable inflatable, mobile working. Therefore, if the product of inferior quality or custody, improper use of an explosive accident prone, endanger the safety of personnel, equipment and property. Enterprises have passed ISO9000, SGS international quality system certification and DOT, TUV, UL, TC, CE and other international product certification, fully qualified, strict management. Valve self-supporting but also effectively guarantee product quality and timely delivery. "First-class products, first-class quality, first-class service" is the eternal pursuit of the ring day and commitment, Central Group domestic and foreign friends willing to seek common development and create a better tomorrow.