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jllh.com.cn is the corporate website of 吉林省隆华测控股份有限公司. According to the site, the company was founded in 2005 and is located in the Changchun Jingyue High-Tech Industrial Development Zone. Its main business covers the R&D, manufacturing, sales, and service of industrial monitoring and control instruments, serving industries such as power, petroleum, chemicals, steel, boilers, and auxiliary equipment manufacturing.
The website mainly functions as a corporate showcase and product catalog. Its sections include company profile, company activities, corporate culture, sales network, news, product center, honors and qualifications, technical capabilities, and contact information. The product portfolio covers level measurement devices, industrial television systems, material level meters, transmitters, flow meters, boiler drum capacitance level meters, pressure switches, and more, with a clear focus on process industries and boiler safety monitoring scenarios. The site also provides after-sales phone numbers, email, address information, and a QR code for electronic catalogs, making offline inquiries easier.
The official website does not publish any quotes, model-specific pricing, or online purchasing options. Industrial instruments of this type are usually quoted on a project basis. Pricing can vary significantly depending on the medium, temperature and pressure ratings, installation method, output signal, explosion-proof/protection requirements, certifications, order quantity, and after-sales service. Buyers need to contact sales or technical staff to confirm product selection.
The main strengths are its clear industry positioning and a relatively complete product lineup centered on liquid level, material level, industrial television, and boiler drum monitoring. The website also lists qualifications such as ISO9001, CE, High-Tech Enterprise status, boiler safety accessory manufacturing, and measuring instrument manufacturing, which can help industrial customers make an initial assessment of the supplier’s background. The drawbacks are that the website experience feels outdated, and there is limited supporting material such as parameter tables, application cases, manual downloads, selection guides, CAD drawings, and communication protocols. Some news dates and content also appear abnormal, suggesting that website maintenance is not very meticulous.
It is suitable for equipment procurement teams, instrumentation and control engineers, EPC contractors, and automation integrators at power plants, boiler manufacturers, petrochemical companies, and steel enterprises looking for domestic industrial measurement and control instrument suppliers. If you are sourcing consumer-grade hardware or general electronics, this site is not a good fit.
This is the official website of a Chinese company and uses a .com.cn domain, so access from within China should generally be direct. Overall, it is better suited for communication via phone, email, or offline business channels rather than self-service online purchasing.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on jllh.com.cn official site.
jllh.com.cn is an China other provider. TG4G tracks its product information, an overall rating of 5.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach jllh.com.cn directly.