Factory made hot-sale Dth Bit - BQ NQ HQ PHD HWT BTW NTW Core Drilling Rod – TDS
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.
Product detail pictures:
Related Product Guide:
We now have a highly efficient crew to deal with inquiries from clients. Our intention is "100% shopper pleasure by our merchandise quality, price tag & our staff service" and take pleasure in a very good standing amongst purchasers. With quite a few factories, we can easily provide a wide vary of 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: Croatia, Victoria, Greece, With the spirit of "high quality is our company's life; good reputation is our root", we sincerely hope to cooperate with customers from at home and abroad and hope to build a good relationship with you.
By Barbara from Czech - 2017.06.16 18:23
The company's products very well, we have purchased and cooperated many times, fair price and assured quality, in short, this is a trustworthy company!
By Laura from Paris - 2017.12.31 14:53
