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Old screw compressor and bearing that has been in operation for a very long time.
Screw retained single-tooth prosthesis produced by a dental technician on an implant. Zirconium implant tooth made with porcelain.
old vintage screws
The worker screwing plasterboard to the ceiling. He is using special electric screwdriver and drywall lift. A red plasterboard improve the fire resistance of ceiling structures.
A close up of a bolt with a black head and a silver body. The bolt is surrounded by other bolts, creating a sense of unity and strength

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