Product Name: Low Price 12mm 3D Printer Mgn9 Mgn Linear Guide Mgn12 Model NO.: MGN9 Certification: ISO 9001:2000 Feature: Antiseptic Running Mode: Moving Carrying Capacity: 18kg Driven Type: Electric Machinery Installation: Printer Structure: Straight Line Material: Carbon Steel Trademark: QTWSTAR Transport Package: Wooden Case Specification: L2000MM Origin: China Product Description Advantages of linear guide:MG Series - Block1. Tiny and light weight, suitable for miniature equipment.2. All materials for block and rail, including rolling balls and ball retainers, are in special grade of stainless steel for anti-corrosion purpose.3. Gothic arch contact design can sustain loads from all directions and offer high rigidity and high accuracy.4. Steel balls will be held by miniature retainer to avoid balls from falling out even when the blocks are removed from the rail installation.5. Interchangeable types are available in certain precision grades.MG Series - Rail1. Tiny and light weight, suitable for miniature equipment.2. All materials for block and rail, including rolling balls and ball retainers, are in special grade of stainless steel for anti-corrosion purpose.3. Gothic arch contact design can sustain loads from all directions and offer high rigidity and high accuracy.4. Steel balls will be held by miniature retainer to avoid balls from falling out even when the blocks are removed from the rail installation.5. Interchangeable types are available in certain precision grades.MG Series - Assembly1. Tiny and light weight, suitable for miniature equipment.2. All materials for block and rail, including rolling balls and ball retainers, are in special grade of stainless steel for anti-corrosion purpose.3. Gothic arch contact design can sustain loads from all directions and offer high rigidity and high accuracy.4. Steel balls will be held by miniature retainer to avoid balls from falling out even when the blocks are removed from the rail installation.5. Interchangeable types are available in certain precision grades.