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Poly Drum Mixer

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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Poly Drum Mixer
What is Real 925 Sterling Silver Jewelry and How To ...
What is Real 925 Sterling Silver Jewelry and How To ...

Sterling Silver, on the other hand, consists of 92.5% silver, and the remaining part consists of copper – mostly copper. This is the reason why Sterling Silver is popularly referred to …

Sterling Silver Price | Price of Sterling Silver | Per ...
Sterling Silver Price | Price of Sterling Silver | Per ...

Sterling silver is defined as 92.5% pure silver and is widely used in high end cutlery, jewelry, and pitchers. The other 7.5% is usually made of some other metal like copper. Most sterling silver pieces will have the word sterling somewhere on the bottom or back, as an example look at the photo adjacent of the back of a large sterling silver spoon.

Sterling Silver vs Silver | Jewelry Guide
Sterling Silver vs Silver | Jewelry Guide

Sterling silver, is highly durable and can last a lifetime. It can easily be polished to smooth away scuffs and scratches and restored to its original luster. Repairing and resizing ,sterling silver, is also cost effective and relatively easy. However, ,sterling silver, tends to tarnish when exposed to moisture and air and requires frequent polishing.

Sterling Silver Vs 925 Silver | Jewelry Guide
Sterling Silver Vs 925 Silver | Jewelry Guide

When 92.5% of pure ,silver, is mixed with 7.5% of other metals (often copper, nickel or zinc) the resulting alloy is called sterling ,silver,. To identify it as such, the number 925 is stamped upon the ,silver,, often in a hidden part of the jewelry.

silver | Facts Properties & Uses | Britannica
silver | Facts Properties & Uses | Britannica

Sterling silver, contains 92.5 percent of ,silver, and 7.5 percent of another metal, usually copper; i.e., it has a fineness of 925. Jewelry ,silver, is an alloy containing 80 percent ,silver, and 20 percent copper (800 fine).

Sterling Silver Vs 925 Silver | Jewelry Guide
Sterling Silver Vs 925 Silver | Jewelry Guide

When 92.5% of pure silver is mixed with 7.5% of other metals (often copper, nickel or zinc) the resulting alloy is called sterling silver. To identify it as such, the number 925 is stamped upon the silver, often in a hidden part of the jewelry.

What's the Difference Between Sterling Silver and Regular ...
What's the Difference Between Sterling Silver and Regular ...

Sterling silver is what's known as a metal alloy. This means that sterling silver is a combination of metals instead of just one single metal (like with pure silver, for example). Sterling silver is 92.5% silver and 7.5% alloy. This 7.5% is usually made of copper or zinc.

A Guide to Silver Markings and Basic Terms
A Guide to Silver Markings and Basic Terms

Sterling silver, (925): This is the standard for silver, identifying a silver item that is at least 92.5% silver mixed with copper to give it strength. Marks on these pieces include 925 or, Sterling, . Any mark indicating a higher silver content, such as 950, would also qualify as, sterling.

How To Tell If Your Sterling Silver Jewelry Is Real 92.5
How To Tell If Your Sterling Silver Jewelry Is Real 92.5

Sterling silver is a popular metal used to make jewelry and other decorative items. Well, pure silver is not really made up of only silver. It has 99.9% of silver, and a small content composed of other metals such as copper. Sterling Silver, on the other hand, consists of 92.5% silver, and the remaining part consists of copper – mostly copper. This is the reason why Sterling Silver is popularly referred to as 925 Sterling …

What is Real 925 Sterling Silver Jewelry and How To ...
What is Real 925 Sterling Silver Jewelry and How To ...

6/3/2021, · Sterling ,Silver,, on the other hand, consists of ,92.5,% ,silver,, and the remaining part consists of copper – mostly copper. This is the reason why Sterling ,Silver, is popularly referred to as 925 Sterling ,Silver, or just 925 ,Silver,.

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Road West, North Branch, Jingkai Road, Puyang City