Tubing naturally has a smaller diameter than casing pipe, except for the 4 1/2-inch diameter. An outer diameter of 114.3 mm (4 1/2 inches) is considered a threshold and can be either casing or tubing. Anything smaller is called tubing, anything larger is casing.
If stainless steel welded pipe in a specific working environment, the need for welding repair, the welding preparation should be...
Stainless steel seamless tube of metal and oxygen in the atmosphere to react, in the appearance will form an oxide film. However, the...
The appearance of a bluish-white zinc coating, the standard electrode potential is -0.76V, soluble in acid, alkali-soluble, metal music...
Comments