CE, RoHS, ISO 9001:2000, ISO 9001:2008
Parkerising Spray Lacquer
Coupling
Cast Steel
Casing Head
China
Product Description
Tubing coupling Tubing coupling is a method of tubing connection by connecting two tubing with internal and external threads. All types of pipe fittings have internal threads, called internal thread forms. These thread forms are usually machined so that they can be connected with pipe external threads, called external thread forms. Thread type - NU,EU, Grade :J55,L80,N80 and P110 Surface treatment - Overall phosphating, or internal phosphating and external coating color -J55 Green |L80 Red with brown stripes |N80 red with green stripes |P110 white
