"JDD" usually refers to a specific type of double-ended E27 (screw-in) halogen bulb commonly used in professional studio lighting

Max pressure: 300PSI (20 Bar)

Internal Dimensions: 91mm (3-9/16in) W x 160mm (6-1/3in) H

High-frequency heat-treated ratchet mechanism and hooks

and modern interiors

Master Lock Combination Lock Weather & Cut Resistance 51mm 178DAU Solvents "JDD" usually refers to aThe Master Lock Set Your Own Combination Padlock delivers premium keyless security with exceptional strength and reliability. Featuring a robust 51mm (2in) wide solid body, this padlock provides superior durability and protection for your valuable property and equipment. The 4 digit dial combination allows for thousands of possible numeric combinations, offering enhanced security while eliminating the need to carry keys. The 8mm (5 16in) diameter