Υλικό και λειαντικά

Κορυφαίοι κατασκευαστές

• Rwm Casters Corp.
• U S Army Tank Automotive Command
• Fki Industries Inc
• General Electric Co
• Hamilton Caster & Mfg. Company, The
• Ventura Mfg Co
• Mcneil Ohio Corp
• Carr Supply Company Mcmaster
• Sears, Roebuck and Co.
• Uop Inc