Arrkays National Engineering & Foundry Co. Suppliers of finished goods, engineering goods & equipment, ventilation & air conditioning, sheet metal products, plastic components, recovery machines, etc.

Arrkays National Engineering & Foundry Co. Suppliers of finished goods, engineering goods & equipment, ventilation & air conditioning, sheet metal products, plastic components, recovery machines, etc.

Metalized sapphire windows are created by applying thin layers of chrome, nickel and gold around the edge of a sapphire window. This metalized edge creates a surface that can be soldered or bonded directly into your opto-mechanical assembly allowing you to create a hermetic seal. Hermetically sealed optics is used in a variety of applications ranging from infrared imaging systems to medical devices. Technical capability Material: optical sapphire (Al2O3) Diameter tolerance: +0, -0.1mm Thickness tolerance: +/-0.05mm Clear aperture: 90% Surface quality: 80-50 scratches and digs Surface accuracy: 2 lambdas per 25.4mm @ 632.8nm Parallelism: < 3 minutes Coating: AR coating, T > 98% @ 1260-1600nm Metalizing: Chrome, Nickel, and Gold; sputtering method or screen printing method

Arrkays National Engineering & Foundry Co. Suppliers of sheet metal products, plastic components, recovery machines, etc.

We are a manufacturer of Plastic Products mainly in Drip irrigation products. as we are Manufacturer of solid ball valve, ball valves, gate valves, Irrigation ball valve, air valves, bolt nut foot valve, threaded foot valve, bore foot valve, solid ball {light quality, heavy quality and Extra heavy quality (we are first in India)} our solid ball valve is FOOL BORE product. Our Brand Name is SHEETAL SOLID BALL VALVE....