Material: Strengthened Cold-Rolled Steel Surface Treatment: Blue Zinc/Double Zinc/Black Coated Length: 250-600mm Loading capacity: 45kg for 600mm length drawer slide Choices of rubber for ball bearing drawer slides Choice of rubber for ball bearing drawer slides 1 Choices of surface for ball bearing drawer slidesDotted or Polished surface for drawer slide Choices of finished treatment for ball bearing drawer slidesSurface Treatment: Blue Zinc/Double Zinc/Black Coated Specification of ball bearing drawer slide Specification of ball bearing drawer slide