metal and non-metal temporary or movable support and erection structures, namely, casts, forms or formworks, for building materials, namely, cement, concrete, brick, blocks, stone or wood; accessories for the accurate placement or orientation of support or erection structures, namely, levels, range finders, yardsticks; metal and non-metal support structures, namely, scaffolding or platforms, for transportation or support of workers, namely, bricklayers, painters or building materials as descr...

computer hardware

RETAINING RINGS FOR FASTENING, SECURING, POSITIONING OR LOCKING PARTS OR COMPONENTS ON SHAFTS OR STUDS OR IN HOUSINGS OR BORES