What Do Parallel Groove Connectors, AL-CU Tap Clamps, and LV/MV Line Connectors Do?

Need yout help in understanding these terms

Hello everyone, nice to meet u all

First of all, please know that English is not my mother language and I work as a translator in training and I have these tools and accessories and I really need to know what they do, could you kindly describe what each one does in simple terms?? please note that I am no electrical engineer but this is very important to me

Thank you

Parallel Groove connector for tapping of Aluminum conductors
Parallel AL-Cu tap off clamp
CU overhead line jumper clamp
Brass terminal with clamp
AL-CU tap-off clamps with cable lugs
Brass parallel groove clamps for copper conductors
LV live line connectors
MV live line connectors
Connectors for preinsulated derivation on CU bare conductors
Tap-off clamps with simultaneous tightening torque
Wedge clamps for tap or public lighting conductor
dead end clamps for self supporting bundles
suspension assemblies for insulated neutral messenger
dead end assemblies for insulated neutral messenger
insulated supports for preassembled LV networks on Facade walls
wall type support and straps
double running-out blocks with nylon rollers for insulated LT and MT cables
Aluminum running-out blocks for insulated and bare overhead lines
pipe for taps
reversible ratchet spanner
neutral grease for contacts

This appears to be equipment for high current mains supply.
Is there a publication or net link you can post up to show the context of your list ?

This is a very long list. If you google each of these items, you would find quickly find manufacturer's and supplier's pages with helpful illustrations, specifications and details of use.

Sorry for my late reply, these are lists from a Portuguese company, we are each given a catalog of a company to try and translate as we understand them, and below is the link to the company
http://www.resul.pt/area/resul/en/1/1/Electricity