Engineering services, namely, engineering in the fields of optics, glass and sapphire technologies; Engineering services, namely, engineering in the field of fused silica, fused quartz, optical materials, high tech ceramics, sealing materials and metals; Custom design and engineering of glass and sapphire optical window systems; Custom design and engineering of fused silica, fused quartz, optical materials, high tech ceramics, sealing materials and metals; Product development consultation; de...