Essential Stainless Steel Triple Rivited/ABS Handle Hollow Poultry Shears

I liked pretty much everything about this product, but one thing...Rust spots... It's is heavy duty, cuts through duck bones(though),that is actually why I bought this,because I couldn't find anything to cut through duck bone. So after I used it, it was covered with duck fat, I washed it in dishwashers, it does says handwash recommended,but it doesn't say DO NOT WASH IN DISHWASHER! I don't like doing dishes so any chance I can get I put it in dishwasher. So after it was done it came out with bunch of rusty spots all over those shears. I had to scrub rust off. So I handwash it now. I would buy it again for sure,but it should say HANDWASH ONLY. GOOD QUALITY PRODUCT. I HAVE OTHER PRODUCTS FROM BERGHOFF.