Industrial Fastening
At CNRL, our wide range of fastener products is fit for various equipment in several fields, including the oil & gas, mining industry, construction sector, chemical industry, etc. Our fasteners are made from high-grade synthetic raw materials and coatings for extremely high tensile strength, durability, and corrosion resistance, ensuring their greater withstanding power in high-stress environments. With the use of superior technology, our fluid system fastening components work to provide optimum performance for oil extraction and natural gas transportation at extreme pressures and temperatures, catering to the chemical and petrochemical applications requirements. On the other hand, as mining and construction fasteners need to be strong and precise to endure the pressures of demanding applications and environments, we design our products to sustain maximum pressure. And at CNRL, we can satisfy all our customers with the most durable heavy-duty mining fasteners, construction fasteners, and a comprehensive selection of hardware demands!
Processing
As manufacturers, we require every production step to adhere to the most stringent quality standards. With our advanced production facilities, years of industry expertise, and corresponding computing instruments, our production ensures industrial fasteners that fit perfectly according to given requirements. Our product performance ranges from class 4.8 to 12.9, with a diameter from 3mm-30mm and a length ranging from 6mm-300mm. Moreover, our product surface treatment methods include the use of blue-white zinc, colorful zinc, black zinc, military green zinc, oxidation, phosphating, trivalent chromium, dacromet, etc., to ensure their durability and can be customized according to one's demands.
Quality Control
We have always maintained a rigorous approach to product quality management, committed to meeting external requirements and expectations. Detailed inspections are carried out from initial proofing to series production. To meet the industry quality standards, CNRL will do a series of tests on industrial fasteners, including mechanical and chemical tests, such as hardness, metallographic, tensile strength, yield, neutral salt spray test, friction coefficient, etc., to ensure the quality and durability of all fasteners. The customized products will be assembled and tested on actual objects after production to ensure that the products delivered to customers meet the promise of exceeding their expectations! Consequently, our professional product inspection report is convenient for customers to check all the information regarding the QC of the product, offering them professional insight on the product quality. The packaging of the relevant accessories contains a description that provides essential installation information for different fasteners. Testing with the direct-reading spectrometer, plating thickness gauge, tensile testing machine, salt spray test chamber, Lowe's hardness tester, metallographic microscope, etc., helps conform to relevant industry standards as well.
