ASME generally refers to the American Society of Mechanical Engineers, ASME B16.11 is a standard recommended by the American Society of Mechanical Engineering covering socket welding and threaded parts, and is also a relatively authoritative and widely used recommended standard in the world.

Galvanized steel pipe is the steel pipe after galvanized processing process, effectively avoid steel corrosion, rust a for prolong the service life of steel pipe. Galvanized steel pipes are divided into hot galvanized and electrogalvanizing.

ANSI B16.5 Flange Blind is a type of flange connection. Flange blind is a flange without a hole in the middle. It is usually used at the end of the pipe to seal the end of the pipe. Moreover, it is convenient to remove impurities in the pipeline during maintenance.

Branch outlet pipe is the support of large diameter pipe to small diameter pipe.Branch outlet is a reinforcing type pipe fitting mainly used for intuitive connection. It is a connection form of branch pipe, such as strengthening pipe segment, instead of using reducing three-way reinforcing

3D Pipe Bend is a pipe whose radius of curvature is equal to 3 times the outside diameter of the pipe, i.e. R=3D (D is the diameter of the bend and R is the radius of curvature). It has the same function as the long radius elbow (bend radius is 1.5 times the nominal diameter of the pipe) and the short radius elbow (bending radius is equal to the nominal diameter of the pipe), which is a kind of pipe fitting for the bend of the pipe.3D pipe bend has applications in various industries, such as electric power, petroleum, Marine, chemical and other fields.

MSS SP-97 BW ASTM A 350 Gr.LF2 is a professional description of foreign trade goods, here refers to the pipe fitting product needs to accord with these two American standards.MSS SP-97 is a standard for forged branch outlet fittings developed by the American Valve and Fittings Industry Manufacturers Standardization Institute.ASTM A350 is a standard established by the American Society for Materials and Testing for forged pipe fittings of carbon steel and low alloy steel.GRLF2 is a low temperature steel forging material under the standard. BW means butt welding.