Taizhou Huarner Metal Products Co., Ltd. is located in Yuhuan, a coastal city in Taizhou, Zhejiang Province, China. It has always been known as the City of Machinery and is a gathering place for metal manufacturing.

Our company is a production enterprise specializing in the development of oil sight glasses, liquid sight glasses, oil plugs and vent caps for reducers, compressors, engineering machinery equipment, machine tools, pumps, automobiles and motorcycles. The high-temperature and high-pressure-resistant oil sight glasses independently developed and designed by us are deeply favored by domestic and foreign manufacturers. Our products include aluminum (copper) oil sight glasses for reducers, oil sight glasses for compressors, oil sight glasses for vacuum pumps, sight liquid glasses for refrigeration compressors, oil sight windows for machine tools, as well as various matching vent caps and oil plugs. The products are of various types and complete specifications. Regarding the products of oil plugs, oil sight glasses and vent caps, "Huarner" has always received high evaluations in the transmission industry for its cost performance in terms of quality, service and price. From metric standards, imperial standards, and American standards to some special-purpose threaded connections, from temperature resistance and exhaust pressure to the assembly and use of each product, we are professional.

We are continuously learning advanced technologies and processes in the industry and provide suggestions and insights to equipment and mainframe companies based on long-term product application experience to better improve product quality. Nowadays, with continuous research and development to meet the increasing demands of customers, the quality and design of our company's main products have steadily increased and remained at the top among domestic counterparts, and can be comparable to similar products in Europe.