China has been offering assistance to Japan, in the aftermath of the devastating earthquake and the ongoing nuclear crisis. Now, a special super-sized water pump is making its way by sea to Osaka.

The ship carrying the water pump left Shanghai at 11 am on Tuesday.

It will arrive at Osaka in 46 hours. It will then be transported to the Fukushima nuclear plant.

The machine was built and donated by China's Sany group, one of only three manufacturers in the world that can make the extremely long pump arms.