Factory made hot-sale Dth Bit - BQ NQ HQ PHD HWT BTW NTW Core Drilling Rod – TDS

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Our company since its inception, always regards product quality as enterprise life, continuously improve production technology, improve product quality and continuously strengthen enterprise total quality management, in strict accordance with the national standard ISO 9001:2000 for Portabl Diesel Screw Air Compressor, Solar Panel Installation Rig, Piston Air Compressor, We warmly welcome customers, business associations and friends from all over the world to contact us and seek cooperation for mutual benefits.

Factory made hot-sale Dth Bit - 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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Our progress depends around the innovative machines, great talents and consistently strengthened technology forces for Factory made hot-sale Dth Bit - BQ NQ HQ PHD HWT BTW NTW Core Drilling Rod – TDS , The product will supply to all over the world, such as: Dubai, Egypt, Sydney, Qualified R&D engineer might be there for your consultation service and we will try our best to meet your requirements. So you should feel free to contact us for inquiries. You'll be able to send us emails or call us for small business. Also you are able to come to our business by yourself to get further knowing of us. And we are going to surely present you with the best quotation and after-sale service. We're ready to build stable and friendly relations with our merchants. To achieve mutual success, we'll make our best efforts to build a solid co-operation and transparent communication work with our companions. Above all, we're here to welcome your inquiries for any of our merchandise and service.

Drill Bit