Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
$INCO para yg suhu kira2 ada yg tau, tambang dan smelter yg paling efisien mengelola nikel se-efisien vale? minimal sama sama efisiennya?