Frequently Asked Questions (FAQ)

HLJH - a professional manufacturer and supplier of cutting oil 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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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 Co., Ltd. (HLJH) have been focusing on manufacturing and marketing the industrial lubricants more than 30 years. Our fundamental belief is to make a harmless, friendly with lives, businesses, and leaving a lasting legacy for generations to come. We offer metalworking fluids (water-based cutting fluid, neat cutting oil), rust preventive oil, hydraulic oil, slideway oil, spindle oil, gear oil and so on that cover the whole industrial lubricant value chain. We are committed to providing eco-friendly and safe industrial solutions with a comprehensive product line such as water-based cutting oils, neat cutting oil, rust preventive oil, hydraulic oil, slideway oil, spindle oil, and gear oil that covers the entire industrial lubricant value chain.

HLJH has been offering customers high-quality metalworking oils and fluids, both with advanced technology and 39 years of experience, HLJH ensures each customer's demands are met.