Back-up rings or anti-extrusion rings are washer-like devices used to prevent seals from extruding through gaps while under pressure.

Raman spectrometers are used to measure the wavelength and intensity of inelastically scattered light from molecules.

Back flow preventers are assemblies consisting of two check valves and two shut off valves.

Welding alloys are used to melt and fuse pieces of metal together.

Spectrometers are analytical instruments which disperse an emission (such as particles or radiation) according to some property of the emission (such as mass or energy) in order to measure the amount of the dispersion.

Cloth tapes use a woven or nonwoven fabric backing that provides a high-strength material compared to film or paper tapes

Abrasive, grinding and finishing accessories include holders, back-up pads, mandrels, contact wheels, polishing naps and other components used to apply abrasive products