Climate and average monthly weather data for Zugspitze, Germany displayed in a beautiful overview. Find the best time to go to Zugspitze.
Removing the flash from a casting is beneficial in a head because it eliminates the swirling effect of the air/fuel. Don't go taking lots of metal out, just smooth out the surfaces and you should be fine.
Before the iron or steel pans are dipped in the molten zinc, it is necessary to remove all scale and rust. This is usually done by pickling in an inhibited acid. To remove molding sand and surface graphite from iron castings shot-or gritblasting is generally used, usually followed by a brief pickling operation.