barrel plating मीनिंग इन हिंदी

This means processes that are hard to control, such as barrel plating, are much more difficult using a trivalent chromium bath.
The boiler was designed for a maximum working pressure of and the boiler barrel plates and firebox outer shell were of nickel steel.
The injector feed pipes led to a combined top-feed check valve, situated on the first barrel plate on the top centre-line of the boiler.
The idea was that fine parts ( such as escapements and wheel trains ) would be made in Switzerland ( where journeyman wages were lower than American wages ), and the larger parts ( such as barrels plates ) and assembling would be done in America.