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rsdzd@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

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rsdzd@pyzyrsd.com

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Road West, North Branch, Jingkai Road, Puyang City

drilling a well pictures
Cornet vs. Trumpet: The Detailed Comparison
Cornet vs. Trumpet: The Detailed Comparison

#8 — The ,cornet, has a mellow sound, the trumpet has a brighter sound. The ,cornet, has a little bit more of a mellow sound whereas the trumpet has a brighter sound. The acoustics here follows the same logic as when we compared the piston trumpet and the ,rotary valve, trumpet, the conical bore, the compact structure, the deeper mouthpiece…

Rotary Valve Cornet : Free Download Borrow and Streaming ...
Rotary Valve Cornet : Free Download Borrow and Streaming ...

Rotary Valve Cornet, Item Preview 503232.jpg . remove-circle Share or Embed This Item. EMBED. EMBED (for wordpress.com hosted blogs and archive.org item tags) Want more? Advanced embedding details, examples, and help! No_Favorite. share. flag ...

Cornet - Valve Cornet
Cornet - Valve Cornet

Very rare antique ,rotary valve cornet, by Kretzschmann c1850-56 cased with crooks and accessories A very desirable antique ,cornet, by the illustrious maker Charles Kretzschmann of Strasbourg. Few examples of his work remain. And many of these are in such museums as the Metropolitan in NY and the National Music Museum.

HornCollector
HornCollector

HornCollector. CORNETS. with ,Rotary, Valves. Email: Eric@HornCollector.com. Check out my new FOR SALE page. Many instruments will be added in the near future. (Posted 9/23/11) MAKER UNKNOWN. 1860's Bb OTS SAXHORN.

Hall & Quinby | Rotary Valve Cornet | American | The ...
Hall & Quinby | Rotary Valve Cornet | American | The ...

Title: Rotary Valve Cornet. Maker: Hall & Quinby. Date: 1870–75. Geography: Boston, Massachusetts, United States. Culture: American. Medium: Metal, silver plated. Dimensions: Height: 13 15/16 in. (35.4 cm) Diameter (Of bell): 4 5/8 in. (11.7 cm) Weight: 1.3 lbs. …

Isaac Fiske | Rotary Valve Cornet | American | The ...
Isaac Fiske | Rotary Valve Cornet | American | The ...

Title: Rotary Valve Cornet. Maker: Isaac Fiske (American, Holden, Massachusetts 1820–1894 Worcester) Date: ca. 1875. Geography: Worcester, Massachusetts, United States. Culture: American. Medium: Nickel silver. Dimensions: Height (Without shanks or mouthpiece): 12 3/8 in. (31.5 cm) Classification: Aerophone-Lip Vibrated-horn

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Road West, North Branch, Jingkai Road, Puyang City