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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

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rsdgj@pyzyrsd.com

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Road West, North Branch, Jingkai Road, Puyang City

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The Differences Between Self-Tapping and Self-Drilling Screws
The Differences Between Self-Tapping and Self-Drilling Screws

Self-drilling screws, are the most common type of screw. They have a tapering shaft with a continuous thread running from the point toward the screw head. The term ",self,-,drilling," signifies that the screw is capable of ,drilling, itself into a material; however, a pilot hole may be necessary to get the screw started.

Industrial Self Drilling Screws & Size Charts | American ...
Industrial Self Drilling Screws & Size Charts | American ...

Self Drilling Screws,. ,Self drilling screws, are a type of ,self,-tapping screw that includes a drill points. Unlike other ,self, tapping ,screws, such as thread cutting and thread rolling, a ,self drilling, screw doesn’t require a pre-drilled hole. This is because the tip of a ,self drilling, screw has a point similar to the point of a drill to create a hole ...

Tek or Self-Drilling Screws for Metal | Allfasteners
Tek or Self-Drilling Screws for Metal | Allfasteners

For fixing sheet metal without the need to predrill, see self-drilling screws—also known under the proprietary name ‘Tek’ screws—for a better and faster way to get the job done. Available in a variance of head types, material compositions and finishes, these screws have now become common place when thinner metals need fixing to each other.

Self Drilling Screws | Fasteners | HardwareCity
Self Drilling Screws | Fasteners | HardwareCity

Self Drilling Screws, | Fasteners | HardwareCity +65 6266 0802 | sales@hardwarecity.com.sg | Free delivery for orders above S$100.00...For international shipping select country at checkout. 0

Self Drilling Screws (284 products) | Raptor Supplies ...
Self Drilling Screws (284 products) | Raptor Supplies ...

Self Drilling Screws Self drilling screws, are designed for fastening plywood floor sheets & roofs to steel frames for construction operations. Raptor Supplies is an authorised distributor of Disco, Fabory, Grainger, Snap-Loc, Teks & Vigil Antislip ,screws, featuring steel / hardened steel / SS construction for resisting bending & breaking upon installation into metal sheets.

How Self-Drilling Screws Work | Simpson Strong-Tie
How Self-Drilling Screws Work | Simpson Strong-Tie

As their name implies, self-drilling screws operate on the same principles as drill bits and other cutting tools. For any cutting tool, performance is governed by cutting speed, feed rate, depth of cut and the work material itself. Therefore, installation performance of self-drilling screws can be linked to the basic cutting tool parameters.

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Road West, North Branch, Jingkai Road, Puyang City