Pengfulong is a company specializing in the production of non-stick coatings introduced in 2006 in Jinyu Development Zone. A founding office of the company insists on taking the road of science and technology. The company has a total of more than 70 employees and only 15 first-line production workers, while technical personnel exceed the number of production workers. In 2006, the company’s tax revenue reached 1.3 million yuan, and in 2007 it reached more than 3 million yuan. Company CEOs said that the company's rapid development depends on technological innovation. Each year, the company spends more than 6% of its sales on technology and conducts scientific and technological cooperation with Jilin University, Zhejiang University, and the world’s top 500 US Solvay companies. The company's raw materials use international advanced polymer materials. Now, the company has become the largest non-stick coating production base in the country.
Coupling
Tubing and casing couplings are the joining of two short length pipe, mainly used for the connection and repair of oil pipe and downhole tools
Tubing and couplings thread types : Non-upset thread(NU), External- upset thread(EU);
Casing and couplings thread types: Long-round thread(LC), Short-round thread(SC), buttress thread(BC)
Grade: K55,J55,N80-1,N80Q,L80-1,P110,etc.
Pup joint
Tubing and casing pup joints are machined according to the latest version of API SPEC 5CT. The steel grade includes J55,K55,N80-1,N80Q,L80-1,P110,etc. There are two types of thread widely used in tubing pup joint namely Non-upset thread(NU), External- upset thread(EU);
Casing and couplings thread types: Long-round thread(LC), Short-round thread(SC), buttress thread(BC).
Our testing and inspection method system is complete, using a whole set of thread instrument to inspect taper, pitch, tooth, height, tooth type,etc. The products have passed the identification of china petroleum pipeline. Quality supervision ,inspection and testing center and gained the unanimous praise from the customers.
Crossover
Crossover coupling any size ,length ,grade and weight is available on customer request.
Steel Grade,Steel Oil Casing Collar,Joint Oil Casing Collar,Pup Joint Oil Casing Collar
Henan Dongfanglong Machine Manufacture Co., Ltd , https://www.eastlongmachine.com