Article List

• Heat treatment of seamless cylinders

  With various aspects of the rapid development of society, all kinds of mechanical role in the industrial gas is more and more cause the attention of relevant personage, and industrial gas continuously reform will steel seamless gas cylinders application domain gradually spread, its important functio

  Industry knowledge October 16, 2017
• Notice of commencement

  Dear old and new customers and friends:Happy New Year!After a happy Spring Festival holiday, our company has started construction normally on February 10, 2020, and everything works as usual. In the new year, our company will provide you with more perfect and high-quality services.Here, SEFIC would

  Corporate news February 11, 2020
• Five ways to quickly solve the poor sealing performance of the valve

  valves generally have poor sealing performance. Many buyers and even sellers do not know how to solve them. Now we have five methods to solve the poor sealing performance of valves for reference.(1) Grinding methodFine grinding, eliminating traces, reducing or eliminating sealing gaps, improving the

  Information and drawings August 12, 2019
• HAPPY NEW YEAR

  SEFIC wishes everyone a Happy New Year! !! !!

  customer visitation January 20, 2020
• How to manage gas and steel cylinders safely

  The first category is steel or aluminum alloy metal bottles (CNG-1);The second type is composite steel gas cylinders (CNG-2) reinforced with steel or aluminum lined with barrels and impregnated with long-fiber resin.The third type is a composite gas cylinder (CNG-3) reinforced with steel or aluminum

  Industry knowledge November 28, 2019
• The difference between the diameter Dn, De, D, d, Φ

  The diameter of the tube can be divided into outer diameter (De), inner diameter (D), and nominal diameter (DN).Note: This is neither the outer diameter nor the inner diameter, but the average of the outer diameter and the inner diameter, called the average inner diameter.When the design uses the no

  Information and drawings August 29, 2019
• SEFIC news is good

  we are family

  Corporate news July 06, 2017
• LPG official website successfully launched

  In order to better serve our customers, our company's official website of lpg products has been released recently. For more information on lpg and related products, please visit http://www.seficlpg.com Our trademark is SEIFC(Shanghai Eternal Faith Industry Co.,Ltd).We are one of the largest manufact

  Corporate news June 14, 2019
• The nature and use of medical gases

  (1) OxygenThe molecular formula of oxygen is O2. It is a strong oxidant and combustion improver. When high-concentration oxygen encounters oil, it will undergo a strong oxidation reaction, generate high temperature, and even burn and explode. Therefore, it is listed as a Class B fire hazardous subst

  Industry knowledge July 25, 2019
• Type of welding gas

  Welding Gases, a gas industry term, has been rapidly developed due to its advantages of good welding quality, high efficiency, and easy automation. The welding shielding gas can be a unit gas or a binary or ternary mixture. The purpose of using welding protective gas is to improve the quality of the

  Information and drawings August 05, 2019