Over a year ago, when it was hard to get weight plates, I 3D printed molds and made rebar-reinforce, cement weight plates with urethane coating and a steel center ring. : r/3Dprinting
DIY Olympic Barbell Cement Weight Molds For Sale - LCMOLDS.COM
Triumph MFG | 25-45 LB Concrete Weight Plate Molds, Mold for DIY Olympic Barbell Weights : Buy Online at Best Price in KSA - Souq is now Amazon.sa: Sporting Goods