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These guarding systems may be configured with various sizes of wire mesh, solid sheet metal, or clear polycarbonate panels. [4] Use of these materials depends on the hazard being guarded and the distance between the hazard and the guard. Mesh opening size of the guard depends on the proximity of the guard to the hazard.
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Upload file; Search. Search. Appearance. ... ISO 3457:2003 Earth-moving machinery — Guards — Definitions and requirements; ... Seed drills; ISO 4254-10:2009 Part ...
There were also requirements for monitoring DoD operations, detecting and responding to infrastructure incidents, and providing department indications and warnings as part of the national process. Ultimately, DoD was responsible for supporting national critical infrastructure protection.
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Room and pillar mines are developed on a grid basis except where geological features such as faults require the regular pattern to be modified. The size of the pillars is determined by calculation. The load-bearing capacity of the material above and below the material being mined and the capacity of the mined material determines the pillar size ...
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A drill chuck is a specialised self-centering, three-jaw chuck, usually with capacity of 0.5 in (13 mm) or less, and rarely greater than 1 in (25 mm), used to hold drill bits or other rotary tools. This type of chuck is used on tools ranging from professional equipment to inexpensive hand and power drills for domestic use.