Shop the highest quality hand truck frames Manufactured in the USA by BP MFG. Choose from five different frame styles: Straight Back Frames, Curved Back Frames, Severe Duty Frames, Straight Curved Combo Frames, and Ergo Frames. 500 lb & 600. lb frame capacities. Four-sided ribbed cross members and top logo channel for rigidity and increased strength. Logo channel also allows room for custom company decals upon request for a small fee. Assembled with exclusive USA Military Aircraft Graded rivets. Severe duty frames are available for heavier duty applications.