2. Information concerning the locations of physical access sites including cabinets and distribution frames, availability of local loops, sub-loops and backhaul in specific parts of the access network and when relevant, information concerning the locations of ducts and the availability within ducts; 3. Technical conditions related to access and use of local loops and sub-loops, including the technical characteristics of the twisted pair and/or optical fibre and/or equivalent, cable distributors, and associated facilities and, when relevant, technical conditions related to access to ducts; "

If wire mesh has to be used, it should be of a suitable grid size to adequately support the foot and the wire should have rounded edges and be plastic coated.

Drug eluting stents are expandable wire tubes coated with a drug which are placed in an occluded artery in order to remove the plaque and support the walls of the vessel.

Technical conditions related to access and use of local loops and sub-loops, including the technical characteristics of the twisted pair and/or optical fibre and/or equivalent, cable distributors, and associated facilities and, when relevant, technical conditions related to access to ducts.

So this is a multifactor approach, and you can see that even as you break down mining—quarries, primary metals, non-metallic, etc.—that they all exceed the total economy average, and all except for the fabricated metal exceed the average of the manufacturing sector.

There is usually a frequency that is then inducted to the metal tracer wire or the metal outer casing, if it's a cased pipe.