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rsdgj@pyzyrsd.com +86 13525609655

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Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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+86 13525609655

E-Mail

rsdgj@pyzyrsd.com

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Road West, North Branch, Jingkai Road, Puyang City

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Grain drill | Britannica
Grain drill | Britannica

Grain drill,, machine for planting seed at a controlled depth and in specified amounts. The earliest known version, invented in Mesopotamia by 2000 bc, consisted of a wooden plow equipped with a seed hopper and a tube that conveyed the seed to the furrow. By the 17th century, metering systems were

The pre-history of soil science: Jethro Tull the ...
The pre-history of soil science: Jethro Tull the ...

1/1/2010, · Abstract. Eighteenth-century British gentleman farmer Jethro Tull (1674–1741) is popularly regarded as the inventor of the seed drill, widely cited by agricultural historians, soil scientists and school history textbooks alike. Whether Tull was in fact the first to experiment with a mechanical seed drill and the horse-drawn cultivators drilling ...

How dental drill is made - material making history used ...
How dental drill is made - material making history used ...

One of these was the 1778 introduction of a near-mechanical drill, which was powered by a hand crank that activated a rotating gear. Soon afterward, an inventor added a spinning wheel to power the drill head. The motion in this device was created by the dentist pushing a foot pedal to move a spinning wheel, which in turn moved the drill head.

Carbide Tungsten Material - Autodesk Community
Carbide Tungsten Material - Autodesk Community

It seems with each release of ,Inventor, more FEA functionality is added, at some point we will probably drop our Simulation ,Mechanical, as soon as Hydrostatic analysis is added. ,Inventor, 2020, In-Cad, Simulation ,Mechanical

Jethro Tull - ASME
Jethro Tull - ASME

In 1701, Tull developed a horse-drawn mechanical seed drill. The drill incorporated a rotating cylinder in which grooves were cut to allow seed to pass from a hopper above to a funnel below. The seeds were then directed into a channel dug by a plough at the front of the machine, and immediately covered by a harrow attached to the rear.

Patents by Inventor Charles Franklin Drill
Patents by Inventor Charles Franklin Drill

Patents by ,Inventor, Charles Franklin ,Drill, Charles Franklin ,Drill, has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

The pre-history of soil science: Jethro Tull the ...
The pre-history of soil science: Jethro Tull the ...

1/1/2010, · Abstract. Eighteenth-century British gentleman farmer Jethro Tull (1674–1741) is popularly regarded as the inventor of the seed drill, widely cited by agricultural historians, soil scientists and school history textbooks alike. Whether Tull was in fact the first to experiment with a mechanical seed drill and the horse-drawn cultivators drilling ...

Charles F. Drill Inventions Patents and Patent ...
Charles F. Drill Inventions Patents and Patent ...

Patents by ,Inventor, Charles F. ,Drill, Charles F. ,Drill, has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Carbide Tungsten Material - Autodesk Community
Carbide Tungsten Material - Autodesk Community

It seems with each release of ,Inventor, more FEA functionality is added, at some point we will probably drop our Simulation ,Mechanical, as soon as Hydrostatic analysis is added. ,Inventor, 2020, In-Cad, Simulation ,Mechanical

Our company mission and the story of the inventor of the ...
Our company mission and the story of the inventor of the ...

IMT - INDUSTRIA MECCANICA TRIVELLE. IMT was founded in 1974 by Mr. Giulio Accorroni, inventor of the first drill rig back in 1958, when water wells were still made using non-industrial methods. This drilling rig was the first rig ever built in Italy, using the driving force of a tractor.

Canadian Inventor Wins Manning Innovation Award for Sonic ...
Canadian Inventor Wins Manning Innovation Award for Sonic ...

Ray Roussy, a ,mechanical, engineer from Surrey, British Columbia, took home a coveted $10,000 Innovation Award from the Ernest C. Manning Awards Foundation for developing one of the fastest drilling Canadian ,Inventor, Wins Manning Innovation Award for Sonic ,Drill

Canadian Inventor Wins Manning Innovation Award for Sonic ...
Canadian Inventor Wins Manning Innovation Award for Sonic ...

Ray Roussy, a ,mechanical, engineer from Surrey, British Columbia, took home a coveted $10,000 Innovation Award from the Ernest C. Manning Awards Foundation for developing one of the fastest drilling Canadian ,Inventor, Wins Manning Innovation Award for Sonic ,Drill

Drill | AutoCAD Mechanical | Autodesk App Store
Drill | AutoCAD Mechanical | Autodesk App Store

The program can query to select the hole layer on each ,Drill, command. The plugin can work with 3D-solids only. It does not work with Meshes, Surfaces. According to your request, I can optimize the program for the standards of your company. Offer your price. You can use the program for free, but from time to time the activation window will appear.

Patents by Inventor Charles Franklin Drill
Patents by Inventor Charles Franklin Drill

Patents by ,Inventor, Charles Franklin ,Drill, Charles Franklin ,Drill, has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

What is a Hammer Drill? What is Used For? - Start ...
What is a Hammer Drill? What is Used For? - Start ...

A first solution belonging to the German entrepreneur Wilhelm Emil Fein, considered to be the inventor of the electric drilling machine, manually controlled, but which was …

Drill | AutoCAD Mechanical | Autodesk App Store
Drill | AutoCAD Mechanical | Autodesk App Store

The program can query to select the hole layer on each ,Drill, command. The plugin can work with 3D-solids only. It does not work with Meshes, Surfaces. According to your request, I can optimize the program for the standards of your company. Offer your price. You can use the program for free, but from time to time the activation window will appear.

Charles F. Drill Inventions Patents and Patent ...
Charles F. Drill Inventions Patents and Patent ...

Patents by ,Inventor, Charles F. ,Drill, Charles F. ,Drill, has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Jethro Tull - ASME
Jethro Tull - ASME

In 1701, Tull developed a horse-drawn mechanical seed drill. The drill incorporated a rotating cylinder in which grooves were cut to allow seed to pass from a hopper above to a funnel below. The seeds were then directed into a channel dug by a plough at the front of the machine, and immediately covered by a harrow attached to the rear.

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+86 13525609655

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Road West, North Branch, Jingkai Road, Puyang City