Changzhou Manta Gym Equipment Limited Company, or Manta for short, is a china gym equipment manufacturer that produce and export gym power rack, weight bench, weight storage rack. Our chief fitness equipment engineer and designer has been a part of the china fitness industry for over 20 years. He has designed and engineered strength training equipment and cardio exercise equipment for major companies and his label as well. OEM Service 1. We have over 80% of the drawings on gym equipment market; 2. Our production capacity over 10k sets per year; 3. 1 stop solution for gym; 4. 6 men core tech team ensures development capacity; 5. 2-3 days for design, another week for sample;