. . . . . . . . . . . . . . Rectangular Retort Stand: Heavy duty made of Cast Iron. Rectangular Retort Stand: Heavy duty with Aluminium Anodised Rod. Retort Stand Mild Steel: With unbreakable nylon ject feet. Tripod Stands: Made of Heavy Cast Iron. Retort Ring: Made of Iron. Laboratory Jacks: Heavy Duty. Die Pressed Burette Clamps: Mild Steel. Burette Clamps: Made of Aluminium Alloy. Universal Burette Clamps: Die Pressed. Burette Clamps Jaw Type: Light pattern clamp. Universal Clamp: condenser clamp. Condenser/Co-axial Clamp Three prongs made of Aluminium Alloy. Three Finger Clamps Boss Head Cast Moulded Boss Head,Cross Angle Type: Cast Iron Moulded.