tunable filter9 factories verified

Yangzhou Deyuan Environmental Engineering Co., Ltd. is located in the beautiful suburbs of Yangzhou, is a company specializing in environmental protection equipment manufacturing, engineering construction, installation services in one of the comprehensive limited company, is the domestic production of water treatment equipment in the industrial equipment of the well-known enterprises. The company covers an area of 15, 000 square meters, all kinds of factory buildings 12, 000 square meters. There are more than seventy varieties of water supply and drainage equipment, nearly 600 specifications, its products throughout the country, the company has a variety of mechanical processing equipment, can be applied to a variety of water treatment equipment manufacturing.

Shenzhen OE PHOTONICS is a high-tech company specializing in the research and development, production and sales of advanced optical waveguide chips and components, optical devices and modules. Headquartered in Shenzhen, it has established a research and development center in Shanghai and a production base in Ganzhou, Jiangxi. The company has nearly 200 R&D and production personnel, and has established long-term good scientific research cooperation with Zhejiang University, Chinese Academy of Sciences, Southwest University and other institutions.

Shenzhen topenergys Electronic Co., Ltd, is a professional manufacturer of LED indoor & outdoor lighting located in Shenzhen, Guangdong, China. Topenergys Electronic is established in 2012 in HK, after serveral years of business development, Shenzhen Topenergys Electronic Co., Ltd is established.

Xinxiang Gaofu Machinery Co., Ltd. Was founded in 2000.

THE ONE STUDIO is a high-tech enterprise engaged in research manufacturing and marking of professional LED studio & Stage lighting, who has over 10 years experience for the LED tech for studio light. Our main LED light products involve LED profile spotlight, LED fresnel spotlight, LED video panel light, LED blinder light, Studio PAR light, etc...

With more than 10years experiments, SAMYON commits us supply professional line instruments and service to our clients refers to Building, Bridge, Highway, Channel, Airport and so on. At present, we have many international customers from European countries, UK, USA, Thailand, India, Indonesia, South Africa, Pakistan, Singapore, Austrilia, Vietnam, Russia, Brazil, Chile, and so on.

Qingdao Puhua Heavy Industry Group Co., Ltd. (the parent company) was established in 2006 and is located in the Marine Equipment Industrial Park in Qingdao's West Coast New Area. It covers an area of approximately 50, 000 square meters. The group has two main subsidiaries: Qingdao Dongjiu Shipbuilding Co., Ltd. And Qingdao Puhua Heavy Industry Machinery Co., Ltd. It owns three national high-tech enterprises: Dongjiu Shipbuilding, Puhua Heavy Industry Machinery, and Zhiling Machinery Equipment. It is a modern enterprise integrating R&D, manufacturing, and sales. Its main products are divided into three categories: Yachts and ships, intelligent equipment, and shot blasting machines. With 16 years of experience in international market development, its products serve 105 countries and regions worldwide.  In 2015, it was designated as a Qingdao Enterprise Technology Center.  In 2019, the group invested in the construction of Puhua Intelligent Manufacturing Park, a manufacturing and R&D base.  In 2019, it was designated a key project enterprise in the West Coast New Area.  In 2020, it was designated a key project enterprise in Qingdao.  In 2020, it was included in the first batch of high-end equipment projects for major projects in the transformation of old and new kinetic energy in Shandong Province. In 2022, it was rated as a specialized, sophisticated and innovative enterprise in Shandong Province.

We are a trusted supplier of CO2 supercritical extraction machines, short path distillation systems, and petrochemical laboratory equipment, with a strong focus on essential oil production and natural extract processing. Our systems ensure high yield, purity, and stability, helping customers in cosmetics, food, pharmaceuticals, wellness, and perfumery achieve efficient, sustainable production. CO2 supercritical extraction is our core technology. Compared with traditional methods, it provides residue-free oils, protects delicate compounds under low temperature and oxygen-free conditions, and allows precise adjustment of pressure and temperature to obtain specific fractions. The result is premium-quality oils with authentic aroma and bioactivity. Our equipment covers a wide range of essential oils. Popular aromatherapy & cosmetic oils: Lavender, peppermint, tea tree, eucalyptus, rosemary, chamomile, lemongrass, geranium, bergamot, sweet orange, lemon, grapefruit, lime, spearmint, Mandarin, citronella, cajeput, palmarosa. Luxury & perfumery oils: Rose, jasmine, neroli, ylang-ylang, tuberose, osmanthus, violet leaf, magnolia, lotus, champaca, frangipani, gardenia, mimosa, lily, agarwood (oud), frankincense, myrrh, sandalwood, benzoin, galbanum, styrax, ambergris substitutes. Spice & culinary oils: Clove, cinnamon, ginger, nutmeg, cardamom, black pepper, white pepper, cayenne, chili, cumin, coriander seed, fennel, star anise, dill, basil, oregano, thyme, marjoram, savory, sage, tarragon, celery seed, bay leaf. Citrus & fresh oils: Lemon, lime, bergamot, Mandarin, tangerine, bitter orange, sweet orange, grapefruit, yuzu, pomelo, calamansi, citron, kaffir lime. Medicinal & functional oils: Arnica, calendula, helichrysum, neem, tulsi, ginseng, ashwagandha, valerian root, camphor, wintergreen, turmeric, garlic, onion, clary sage, peppermint menthol fraction, eucalyptus cineole fraction, gingerol-rich ginger oil. Exotic & regional oils: Patchouli, vetiver, cedarwood, pine, fir needle, juniper berry, cypress, guaiacwood, copaiba balsam, Peru balsam, elemi, palo santo, hinoki, shiso, perilla seed, moringa seed, prickly pear seed oil. Applications are broad. In cosmetics and personal care, oils like lavender, chamomile, rose, sandalwood, and citrus are widely used, while tea tree, eucalyptus, and neem provide antimicrobial properties. In pharmaceuticals and nutraceuticals, oregano, clove, ginger, turmeric, and frankincense deliver active compounds. In food and beverages, cinnamon, nutmeg, cardamom, basil, thyme, and citrus oils serve as natural flavors. Aromatherapy and wellness rely on lavender, peppermint, ylang-ylang, and bergamot, while luxury perfumery depends on rose, jasmine, tuberose, osmanthus, frankincense, and agarwood. Household and cleaning products often use citrus, pine, eucalyptus, and clove oils. Why clients choose us: Our equipment offers high yield, scalability from lab to industrial scale, robust construction for long-term use, energy-efficient operation, and compliance with CE, ISO, and GMP standards. Beyond extraction, we supply short path distillation systems for refining and fractionating oils, and petrochemical laboratory equipment for R&D and quality control. We focus on long-term partnerships. Many customers start with small units and later scale up production with our support. We provide consultation, training, and reliable after-sales service. Our goal is to deliver not only machines but complete solutions that drive sustainable growth. In conclusion, from common oils such as lavender, peppermint, tea tree, and citrus to rare treasures like rose, jasmine, sandalwood, agarwood, frankincense, and myrrh, our CO2 supercritical systems deliver pure, consistent, premium-quality products. With the ability to process hundreds of botanicals, we empower clients worldwide to meet the growing demand for safe, natural essential oils. Choosing us means choosing a reliable, innovative, long-term partner.  

Yiwu GALAXY Lights Co., Ltd. is an integrated manufacturer and trading company specializing in decorative lighting, LED gift lighting and indoor/outdoor lighting products. Our production factory is located in Zhongshan, Guangdong, one of China's major lighting manufacturing bases, while our showroom and sales shop are located in Yiwu, Zhejiang, providing convenient product display, sample communication and export service for global customers.