# Techcore Oil Tools Co.,Ltd, | downhole completion tools,oil well tools, dst drill stem test,oil well drilling tools, well testing tools,oil well drilling tools, ## summary > Manufacturer, Exporter, Brands: TECHCORE, ZZ TOP OIL TOOLS enlarged the downhole oil tools factory in 2016 under the Brand - TECHCORE., Established in 2014, Employees: >100, Annual sales: 5Million-10Million, Export ratio: 80% - 90%, Primary markets: Worldwide. ## Company Information * [Company Profile](https://www.downhole-oiltools.com/aboutus.html): Overview, history, teams and core capabilities. * [Factory & Manufacturing](https://www.downhole-oiltools.com/factory.html): Production capacity, OEM/ODM capabilities, and R&D strength. * [Quality Control](https://www.downhole-oiltools.com/quality.html): ISO certifications, quality standards, and compliance. * [Contact Us](https://www.downhole-oiltools.com/contactus.html): Global offices, inquiries, and support channels. ## Product Category * [Downhole Oil Tools](https://www.downhole-oiltools.com/supplier-309266-downhole-oil-tools): Keywords: downhole drilling tools,downhole completion tools,oil well tools. * [Drill Stem Test Tools](https://www.downhole-oiltools.com/supplier-307866-drill-stem-test-tools): Keywords: oil well drilling tools,dst drill stem test,well testing tools. * [Open Hole DST](https://www.downhole-oiltools.com/supplier-307892-open-hole-dst): Keywords: dst tool,downhole tools,dst well test. * [Retrievable Packer](https://www.downhole-oiltools.com/supplier-307868-retrievable-packer): Keywords: well packer,open hole packer,downhole packer. * [Select Tester Valve](https://www.downhole-oiltools.com/supplier-307870-select-tester-valve): Keywords: pressure safety valve,downhole valve,down hole test. * [RD Circulating Valve](https://www.downhole-oiltools.com/supplier-307871-rd-circulating-valve): Keywords: downhole safety valve,circulation valve,omni circulating valve. * [Oil Well Completion Tools](https://www.downhole-oiltools.com/supplier-317255-oil-well-completion-tools): Keywords: well completion equipment,downhole completion equipment,downhole completion tools. * [Bridge Plug](https://www.downhole-oiltools.com/supplier-307872-bridge-plug): Keywords: retrievable bridge plug,bridge plug setting tool,drillable bridge plug. * [Oil Well Perforation](https://www.downhole-oiltools.com/supplier-307873-oil-well-perforation): Keywords: perforated well casing,oil well fishing tools,well casing perforator. * [Coiled Tubing Tools](https://www.downhole-oiltools.com/supplier-307874-coiled-tubing-tools): Keywords: coiled tubing downhole tools,thru tubing tools,downhole drilling tools. * [Wireline Tools And Equipment](https://www.downhole-oiltools.com/supplier-359766-wireline-tools-and-equipment): Keywords: wireline fishing tools,heavy duty swivel joint,slickline tools. * [Wellhead Pressure Control Equipment](https://www.downhole-oiltools.com/supplier-359767-wellhead-pressure-control-equipment): Keywords: wellhead control system,wireline pressure control equipment,wellhead equipment. ## Featured Products * [DST Super Safety Valve Downhole Oil Tools OD 8" 10000 PSI Inconel Steel](https://www.downhole-oiltools.com/quality-11187586-dst-super-safety-valve-downhole-oil-tools-od-8-10000-psi-inconel-steel): Keywords: downhole completion tools,oil well tools. * [Casing Alloy Steel Oil Well Completion Tools ESP Packer Hydraulic Set Packer](https://www.downhole-oiltools.com/sale-11199990-casing-alloy-steel-oil-well-completion-tools-esp-packer-hydraulic-set-packer.html): Keywords: downhole completion equipment,well completion equipment. * [Open Hole IPO Circulating Valve DST In Drilling Internal Pressure Operated](https://www.downhole-oiltools.com/sale-11176119-open-hole-ipo-circulating-valve-dst-in-drilling-internal-pressure-operated.html): Keywords: dst tool,downhole tools. * [5" 15000 PSI Cased Hole DST Tool Rupture Disk Sampler Drill Stem Testing](https://www.downhole-oiltools.com/sale-11171948-5-15000-psi-cased-hole-dst-tool-rupture-disk-sampler-drill-stem-testing.html): Keywords: dst drill stem test,oil well drilling tools. * [Cased Hole Ful Flo Drill Stem Test Tools DST String High Pressure 5 Inch](https://www.downhole-oiltools.com/sale-11145696-cased-hole-ful-flo-drill-stem-test-tools-dst-string-high-pressure-5-inch.html): Keywords: dst drill stem test,oil well drilling tools. * [5 Inch 15000 PSI RD Circulating Valve Cased Hole Drill Stem Test Tools](https://www.downhole-oiltools.com/sale-11100676-5-inch-15000-psi-rd-circulating-valve-cased-hole-drill-stem-test-tools.html): Keywords: omni circulating valve,downhole safety valve. * [Cased Hole Full Bore Retrievable Packer Compression Set Casing Packer](https://www.downhole-oiltools.com/sale-11093539-cased-hole-full-bore-retrievable-packer-compression-set-casing-packer.html): Keywords: well packer,downhole packer. * [7" 10000 PSI Retrievable Slickline Plugs Material Alloy Steel Model 3L](https://www.downhole-oiltools.com/sale-11038401-7-10000-psi-retrievable-slickline-plugs-material-alloy-steel-model-3l.html): Keywords: retrievable bridge plug,drillable bridge plug. * [High Pressure Downhole Valve Well Testing DST AISI 4140 Alloy Steel 15000 PSI](https://www.downhole-oiltools.com/sale-11036655-high-pressure-downhole-valve-well-testing-dst-aisi-4140-alloy-steel-15000-psi.html): Keywords: downhole valve,pressure safety valve. * [Alloy Steel Well Testing Tools Oil Well Drilling Tools OMNI Circulating Valve](https://www.downhole-oiltools.com/sale-11089860-alloy-steel-well-testing-tools-oil-well-drilling-tools-omni-circulating-valve.html): Keywords: well testing tools,oil well drilling tools. ## Search Search endpoint: https://www.downhole-oiltools.com/buy-{keyword}.html Rules: - Convert keywords to lowercase - Replace spaces with "-" - Remove special characters Users can combine keywords for more precise searches. ## News & Blog * [High Pressure Ball Valve Assembly](https://www.downhole-oiltools.com/news/high-pressure-ball-valve-assembly-79685.html) * [High Temperature and High Pressure(HTHP) Packer Element Testing](https://www.downhole-oiltools.com/news/high-temperature-and-high-pressure-hthp-packer-element-testing-79683.html) * [The part list of Hydraulic Circulating Valve](https://www.downhole-oiltools.com/news/the-part-list-of-hydraulic-circulating-valve-83418.html) * [Select Tester Valve / Downhole Tester Valve are ready for shipment](https://www.downhole-oiltools.com/news/select-tester-valve-downhole-tester-valve-are-ready-for-shipment-99261.html) * [Oilfield Wireline Tools / Slick Line Tools are ready for shipment](https://www.downhole-oiltools.com/news/oilfield-wireline-tools-slick-line-tools-are-ready-for-shipment-99453.html) * [Northstar Boosts Efficiency in Highpressure Cased Hole Drilling](https://www.downhole-oiltools.com/blog/northstar-boosts-efficiency-in-highpressure-cased-hole-drilling-370269.html) * [Drillstem Testing Key to Oil and Gas Exploration Success](https://www.downhole-oiltools.com/blog/drillstem-testing-key-to-oil-and-gas-exploration-success-370268.html)