All overseas equipment made by US companies are USBC approved. With the exception of a couple(literally) that are on the non-conforming list.
Many of these bowling balls make it to the US. Many of the overseas companies such as ABS, have all of their releases USBC approved.
All companies have more total releases overseas then they do in the US, which leads one to believe that they sell much more product there then here.(appears to be mainly the far east)
Most of the time they just have smaller performance gaps in bowling balls from one series to the next.
Are they better??? Not sure. They are great bowling balls that perform well from all my previous experience. I get them online here when available at the same price or less then most of the other stuff released here which is always a plus.
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" men lie, women lie, numbers don't "