Article List

• Gas cylinders and functions

  The main load of the gas cylinder is internal gas pressure, wind load and earthquake action. The wind vibration coefficient should be considered in wind loads. The wind load shape coefficient of the high pressure spherical tank can generally be 0.30 to 0.35. The horizontal seismic action of the wet

  Industry knowledge August 16, 2018
• Understanding of acetylene gas

  Ethylene is a colorless anesthetic gas having a characteristic sweet smell of hydrocarbons at normal temperature and pressure. It is chemically active and forms an explosive mixture with air. It is extremely flammable and explosive. It can be combined with chlorine gas under the sun to cause an expl

  Industry knowledge August 08, 2018
• Gas properties

  Temperature: macroscopically, the degree of heat and cold of an object; microscopically, a sign of the intensity of the irregular movement of molecules inside the object.The relationship between thermodynamic temperature and Celsius temperature: T = t + 273 {T: thermodynamic temperature (K), t: Cels

  Industry knowledge July 25, 2018
• Helium basic knowledge

  Product Name: Helium HeliumOther names: Leak detection gas, HeliumProduct purity: 99.9~99.9999%Product Description: Helium is a colorless, odorless, non-combustible inert compressed gas. With its low boiling point of -268.9 ° C, liquid helium can be used for ultra-low temperature cooling. Helium is

  Industry knowledge July 16, 2018
• Hydrogen bottle storage standard

  Hydrogen and empty bottles should be stored separately in the compartment at the edge of the unit and away from open flames or equipment with operating temperatures equal to or higher than the ignition point.The hydrogen cylinder should be light green according to GB 7144, and the 20 MPa cylinder sh

  Industry knowledge July 09, 2018
• SEFIC Monthly sharing meeting

  During the monthly meeting, the general manager of SEFIC shared the sales experience for us. The professional and effective communication and positive attitude are the necessary attitudes of our SEFIC family. After the sharing, SEFIC also presented gifts and prizes to our outstanding employees. At S

  Corporate news July 03, 2018
• Cross the Dragon Boat Festival in SEFIC

  The Dragon Boat Festival is one of the four traditional Chinese festivalsThe Dragon Boat Festival, which originated in China, is still a very popular and solemn festival among the Chinese people.The Dragon Boat Festival, is Chinese two thousand years of tradition, because the region vast, many natio

  Corporate news June 15, 2018
• SEFIC Commendation ceremony at the end of the month

  2018.5.31 sefic awards prizes to each of our employees, encourages every employee's enthusiasm and enthusiasm, and we passionately discuss and communicate. We only provide you with better services. We provide a variety of Seamless Steel Cylinder, Gas Cylinder, and Gas. Solutions, Liquid Tank You nee

  Corporate news June 01, 2018
• SEFIC lawyer lecture

  Sefic holds a lawyer's lecture on April 24, 2018. The main content is: foreign trade risk control.

  Corporate news April 25, 2018
• April 17 2018 Customer Visit SEFIC

  April 17, 2018 Customer VisitThey are very satified with our products and service. Their customers are speak highly of our products. And this time the customers visit us to closer our future business and repeat a huge order at once.

  customer visitation April 18, 2018