Compared with the sublevel caving method of the bottom column, the most characteristic feature of the method is that there is no bottom structure composed of special mining roadway in the lower part of the section; the sections of rock drilling, collapse and mining are all in the mining Conducted in the roll. As a result, the structure of the mining method can be greatly simplified, creating favorable conditions for the use of trolley-free equipment and ensuring that workers work under safe conditions.
Cixi Air-Fluid Brass Pipe Fittings with Nickel-Plated ,Max. pressure: 1200 psi, except Domestic Brass fittings Temp. range: -65° to 250°F,NPT connections. For use in water, oil, natural gas, and steam applications.
The Configurations as below:
Brass Pipe Hex Nipple,Brass Pipe Nipple,Male Pipe to Female Pipe Hex Bushing,Brass Female Pipe Coupling,Reducer Bushing ,Countersink Plug,Brass Female Pipe Tee,Brass Male Pipe Tee ,Brass Male Pipe to Female Pipe Elbow,Brass Male Pipe to Male Pipe Elbow,Brass MNPT Reducing Bushing,Reducer Bushing,Bushing,Brass Pipe Female Elbow 90 Degrees,Reducing Adapter,Male Elbow, 90 Degrees,Brass MNPT x FNPT Reducing Bushing,Brass MNPT x FNPT Street Elbow, 90 Degrees,Brass Female Pipe Tee.
Brass Pipe Thread Fittings, Brass Pipe Fittings, Threaded Pipe Fittings
Ningbo Air-Fluid Pneumatic Components Co., Ltd , http://www.air-fittings.com