Dalian Hede Technologies Co., Ltd.is located in Dalian, a beautiful coastal city in north of China.Hede is a high-tech chemical enterprise integrated with R&D,manufacturing and foreign trade,specialized in the supply of gas sampling bags,standard gas,gaspipe line fittings,valves,stainless steel gas sampling cylinders and related products. Our products are widely uesed in petrochemical industry, environmental protected inspecting,medical treatment and public health, scientific researches,and has been long-time used by the institutes of the major domestic petrochemical enterprises, Chinese Academy of Sciences, Academy of Agricultural Sciences,Chinese Academy of Forestry,and also many famous colleges and universities, each region of the environmental protection monitoring stations.

      At pressent,our company has gas preparation includes standard gas for petrochemical industry,environmental testing,combustibal gas detection,ship and instrument calibration;Mixed gas for laser,electric light,gas preservation and diving.Our electronic balances in using preperation of standard gas and mixed gas are all imported from Germany,and the preperation and quality detection & control of standard gas both implement national secondary standard material technology specification.

      In 1999,our company named the bags special using in gas sampling and storage ”gas sampling bags”in China first case,printing ”GAS SAMPLING BAGS” on the bags,the name is proposed for the first time at home and abroad,and now it’s already generally recognized and adopted by customers at home and abroad.In 2002,our company made gas sampling bags using polyperfluorinated ethylene propylene film (Teflon®FEP by Dupont Co.) is China first case.Teflon®FEP film gas sampling bag is internationally recognized being the most excellent physical and chemical properties gas sampling bag. We are currently the only manufacturer which can use FEP film heat sealing to make gas sampling bags.

    After years of growth,we have now become a professional chemical manufacturer,supplier and exporter.Our product scope covers a wide range of chemical materials including gas sampling bags,valves and fittings,gas sampling cylinders and so on. Our philosophy is to give excellent sales, service, quality, and technical advice. We focus on customer service, a key ingredient of business, as well as high quality of products. We have gained our customers trust by providing high-quality products, competitive price, prompt delivery and professional services. We have established and developed worldwide partnerships with quantities of domestic and abroad enterprises. Our company also has its own large-scale warehouse and transportation fleet, a highly efficient logistics system and our products have been exported to South America, Middle East, South-east Asia and other countries. 

      For more than 10 years research,the connections on gas sampling bags designed and developed by our company have received several China nutional utility model patents and applied for patents in the USA and Canada,with international leading level.Our company launched two kinds of new gas sampling bags with completely independent intellectual property rights in 2011:Devex Gas Sampling Bag and Fuode Gas Sampling Bag. Devex gas sampling bag compared to Aluminium-foil(multi-layer)gas sampling bag is a higher performance replacement; Fuode Gas Sampling Bag is of excellent properties and affordable price,it can completely replace Tedlar Gas Sampling Bag.Devex film and Fluode film are leaded and developed by our company combining several professional companies together,special used in making gas sampling bags, raw materials provided by the world famous chemical companies.

      At present,we have 5 main types of products:Aluminium-foil(multi-layer)gas sampling bag, Devex(multi-layer)gas sampling bag,Dupont Tedlar®PVF gas sampling bag, Kynar PVDF gas sampling bag, Fluode gas sampling bag, Teflon®FEP gas sampling bag,and a total of more than 40 types! More than a decade,in our company’s guidance,as Lab Consumable gas sampling bags have been developed into an industry,our company’s technologies discourses on the manufacture,use and selection of gas sampling bags have been referenced and followed by a large number of companies.

       Since 2001,our company started producing high-pressure stainless steel sample cylinders and stainless steel gas pipe line fittings,such as: stainless steel dual-ferrule pipe fitting,tee joint,filter,needle valve, pressure regulator,etc.In 2008 our company involved in design and presided over a gas centralized supply engineering of Quality Inspection Center in a large aromatics project at Dalian Development Zone Dagushan petrochemical industrial park; We provided the Quality Inspection Center nitrogen, hydrogen,oxygen,argon,helium and acetylene, a total of six kinds of gases,laid stainless steel tube about 4 km, installed various kinds of stainless steel needle valves and ball valves about 300,installed stainless steel gas pressure regulator using in cylinders and pipe about 40!

      We constantly seeking to learn and grow and getting continuous development and grandness with the concept of Rigorous working attitude, Pragmatic and Efficient,Solidarity,Innovation,Win-Win Cooperation. High responsibility, high quality, high efficiency, high reliability and high integrity are our promises for customers! we wholehearted work so we are professional!