material testing and quality control services, namely, providing quality control and material testing services for others by measuring the layer of compressive residual stresses in materials by X-ray diffraction

Firearm bolts, namely, locking bolts for firearms in the nature of bolt assemblies, bolt completion groups, bolt heads, bolt carrier groups, bolt components in the nature of ejectors and extractors, metal bolts, ramped bolts and bolts for use on firearms

STEEL