Frequently Asked Questions (FAQ)

HLJH | Industrial Lubricants & Metalworking Fluids Manufacturer & Supplier in Taiwan

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Knowledge ( Q&A )

HAI LU JYA HE Co., Ltd. (HLJH), we are a manufacturer and a supplier of industrial lubricants. We have been focusing on manufacturing and marketing the industrial lubricants more than 30 years.


Therefore, we are going to sharing our experienced and frequently questions for your reference, like「What causes FOAMING COOLANT?」「How to Select the Right Hydraulic Oil」, and so on. These articles are useful and helpful for metal processing. For sure, if you have any unclear or any questions, please feel free to contact us or email to us.

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Cutting fluid, also known as coolant, plays a crucial role in machining and metalworking processes. Whether you're operating a small home workshop or managing a large industrial facility, understanding...

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Expert-grade industrial oils backed by ISO 9001 certified manufacturing and technical precision which maximize uptime and machinery Life. Industrial lubricants including slideway oil, hydraulic oil, and rust...

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Liquid paraffin (white mineral oil) is selected mainly by viscosity grade. HLJH supplies the MORESCO-WHITE series, developed and made in Japan by MORESCO, in viscosity grades from P-55 (light) to P-350...

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As AI rack densities climb beyond the limits of air cooling, data centers are turning to liquid cooling to remove heat from high-density GPU racks. Building on four decades of industrial fluid expertise,...

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PFAS are a group of man-made chemicals that last a very long time, and many countries are moving to limit them. Some industrial lubricants, such as PTFE and PFPE greases and oils, contain PFAS, so more...

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Metalworking Fluids & Custom Lubricant Solutions | HLJH

Based in Taiwan, HAI LU JYA HE CO., LTD is a leading manufacturer and supplier of premium industrial lubricants. Our comprehensive product line features metalworking fluids, including soluble, semi-synthetic, synthetic, and neat cutting oils, alongside rust preventive, slideway, and hydraulic oils. With advanced manufacturing capabilities, we produce up to 150 tons of high-quality cutting fluids every month.

Hai Lu Jya He upholds the principles of integrated production-sales and environmentally responsible operations. Our processes apply Japanese bio-stabilization technology, and our role has evolved from pure product sales to authorized distribution and joint Taiwan-Japan technical cooperation and development. HLJH provides one-stop solutions for industrial oils and cutting fluids, covering eco-friendly cutting oil, customized oil production, and waste oil treatment (Taiwan only). Committed to green, environmentally responsible operations, HLJH owns its proprietary brand WILL and is MORESCO (Japan)'s authorized distributor in Taiwan, with select products co-developed through joint Taiwan-Japan technical cooperation — one of the few Taiwan companies with this kind of overseas production technology partnership.

HLJH has been offering customers high-quality metalworking oils and fluids, both with advanced technology and 44 years of experience, HLJH ensures each customer's demands are met.