Designers, manufacturers, and sellers are obligated to provide products and equipment that are safe and free from defects. Unfortunately, mechanical things fail, injure people, and affect lives. You should trust an attorney whose mechanical engineering degree taught him how to read drawings, understand specifications, and investigate how and why products fail.
Some examples of product defect cases are mechanical failures in vehicles, workplace accidents, fires, furniture tip-overs, defective appliances, or toys.
If you have been injured, you may need a thorough engineering and forensic investigation in order to hold those who are responsibly accountable for defects in their products.