Hello I need advice on a welding cell with a Kuka robot ( KR 15/2), YOM 2000), the dimensions are 3000x2800x3000 mm aprox

I have had it for a few years now and I was holding it with some clamps that I got from the producer; but they are got rosty and now I need to get new onew before putting my machine in danger or getting hurt myself. Anybody knows where I can get clamps? Resistent ones