Factory wholesale Drill Bit For Rock - BQ NQ HQ PHD HWT BTW NTW Core Drilling Rod – TDS

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Factory wholesale Drill Bit For Rock - BQ NQ HQ PHD HWT BTW NTW Core Drilling Rod – TDS Detail:

SIZE	INNER DIAMETER (mm)	OUTER DIAMETER (mm)
ATW / AGM	36.8	44.5
BTW / BGM	48.8	56.5

Raw materials:

Tangshan Jinshi only choose the best steel tubes in the market to manufacture our rods and pipes. Spot check will be conducted after the steel tubes delivered to company. We will make sure the compositions and specifications match the inspection report form the suppliers.

Heat treatment control:

Heat treatment will greatly improve the material strength and increase the thread wear life of the rods and casings. We conduct either tru-wall or both ends heat treatment to the tube body. After heat treatment, strength, hardness, straightness and concentricity of the treated tubes will be tested in our lab.

Thread opening process:

Accuracy of threads will determine the use effects and life time of drill rod and casings.

CNC latches and form cutter are used in thread opening processing to minimize error made by anthropic factors.

Additional thread treatment:

Surface of the threads will be cleaned to remove burr adhered after threads are opened.

Afterwards, the tread surface will be phosphated to improve surface conditions.

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Sticking for the perception of "Creating products of top quality and producing friends with people today from all around the world", we constantly place the desire of shoppers to start with for Factory wholesale Drill Bit For Rock - BQ NQ HQ PHD HWT BTW NTW Core Drilling Rod – TDS , The product will supply to all over the world, such as: Colombia, Vietnam, Kazakhstan, Our company is an international supplier on this kind of merchandise. We supply an amazing selection of high-quality merchandise. Our goal is to delight you with our distinctive collection of mindful items while providing value and excellent service. Our mission is simple: To supply the best items and service to our customers at the lowest prices possible.

Concentric Casing System