Is a 43cc gas trimmer enough for thick grass?

Yes. 43cc is mid-size gas power, enough for tall grass, fence lines and light brush. It is not a brush cutter, so woody saplings will still be slow work.

What fuel mix does it use?

Two-stroke gas trimmers of this size typically run on a 50:1 gas-to-oil mix. Confirm the ratio in the manual before the first tank, since running straight gas will damage the engine.

How does it compare with a battery trimmer?

It has more sustained power and no recharge downtime, but it is louder, heavier and needs fuel mixing and engine maintenance. A battery trimmer suits small lots better.

Are parts and trimmer line easy to find?

This is the weak point of lesser-known brands. Check the head and spool type before buying and confirm you can source replacements, or plan to fit a standard aftermarket head.

Does it come with the trimmer head and line installed?

Gas trimmers in this class usually ship with a bump-feed head and a starter line spool. Verify the included accessories and any shoulder strap in the box contents.