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rsdzd@pyzyrsd.com +86 13525609655

Industrial Machine Manufacturers

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

Industrial Machine Manufacturers
The Effects of a Small Sample Size Limitation | Sciencing
The Effects of a Small Sample Size Limitation | Sciencing

A sample size that is too small increases the likelihood of a Type II error skewing the results, which decreases the power of the study. Calculating Sample Size To determine a sample size that will provide the most meaningful results, researchers first determine the preferred margin of error (ME) or the maximum amount they want the results to deviate from the statistical mean.

Small Size: 4 Ways It's Your Biggest Competitive Advantage ...
Small Size: 4 Ways It's Your Biggest Competitive Advantage ...

Strategy ,Small Size Is Your Biggest Advantage,: 4 Ways No need to pretend you're a large company. Your ,small size, can help you beat the competition.

List of battery sizes - Wikipedia
List of battery sizes - Wikipedia

A common ,size, for cordless tool battery packs. This ,size, is also used in radio-controlled scale vehicle battery packs and some Soviet multimeters. 1 ⁄ 2-, 4 ⁄ 5 - and 5 ⁄ 4-sub-C sizes (differing in length) are also available. Soviet 332 type can be replaced with R10 …

Small - definition of small by The Free Dictionary
Small - definition of small by The Free Dictionary

small 1. Notably below average in amount, size, or scope: bantam, little, petite, smallish. 2. Contemptibly unimportant: inconsiderable, negligible, niggling, nugatory, paltry, petty, picayune, piddling,... 3. Below another in standing or importance: inferior, junior, lesser, low, lower, minor, ...

The Disadvantages of a Small Sample Size | Sciencing
The Disadvantages of a Small Sample Size | Sciencing

14/5/2018, · A small sample size can also lead to cases of bias, such as non-response, which occurs when some subjects do not have the opportunity to participate in the survey. Alternatively, voluntary response bias occurs when only a small number of non-representative subjects have the opportunity to participate in the survey, usually because they are the only ones who know about it.

Small-size - definition of small-size by The Free Dictionary
Small-size - definition of small-size by The Free Dictionary

The casting of ,small-size, metallic parts, such as components of dental or bone prostheses, has become, in the last few years, a very important element in the activity of many specialized companies and even of many medical and technical laboratories.

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Road West, North Branch, Jingkai Road, Puyang City