Wire leaders are used when pike fishing so the fish does not cut your line when hooked. Wire line is used when trolling to get your lure down without using downriggers.
Yes you can use this lead for casting fishing weight.
Lead is dense and heavy, so a lead fishing weight can be kept small. In the UK, lead fishing weights are banned, anglers must use a different material replacement.
Lead is a dense substance, and conveniently malleable.
lead
lead fishing sinker
Humans use fishing poles for fishing
Lead
A fishing weight can be made out any material in general but many manufacturers are using Tungsten, Bismuth and brass as substitutes. Unfortunately these tend to be more expensive.
Yes some people use them for fishing
Fishing Sinkers
Commercial fishing uses drag nets and others use one "Long line" that has hooks. Recreational fishermen use fishing rod/reels, fly fishing, spear fishing and bow fishing.
The easiest way to make sure you know where your lead wires go on your distribute is to check the owner's manual. The next way to ensure the lead wires are being placed properly on your distribute would be to check the internet for information.