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Wire sheathing, there are glass fiber wire sheathing, PVC sheathing, heat shrinkable sleeve, etc. in electrical materials, all of which are a kind of insulating sleeve. Generally speaking, wire sheathing can be divided i...

Glass fiber reinforced winding pipe, also known as fiberglass pipe, is made of unsaturated resin and glass fiber. It is a cable protection device for power cables and communication cables in underground facilities when t...

Mud rotary is often used in soft sediments that may or may not be saturated with groundwater. Borehole advancement by mud rotary drilling is achieved by the rapid rotation of a drill bit which is mounted at the end of th...

Air rotary drilling is a method used to drill deep boreholes in rock formations. Borehole advancement is achieved by the rapid rotation of a drill bit which is mounted at the end of the drill pipe. The drill bit "cu...

When information regarding the rock at any given site is desired rock coring can be conducted in order to evaluate the type, quality, soundness, strength and other properties of the rock.  Rock coring is generally a...