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PDO is a pioneer in the production of technologically advanced packaging.
We are a family business with 100 committed employees at its heart, each of whom is a specialist in their own field. Our strength is the continuous improvement of our people and their active participation in creating innovative solutions.
For almost 25 years, our team of experts has been continually growing, partly as a result of the founding of the Technical College of Printing Processes, where we educate our own staff.

Zhejiang Donser Holding Co., Ltd. is an packaging manufacturer engaged in the R&D and production more than 25 years, with workshop area of 33,000 square meters, 400 employees, and annual output value has achieved more than 300 million RMB.

DONSER products cover three series of pp woven packaging, PE co-extruded packaging and flexible packaging. Which are widly used in food, pet food, agriculture, animal feed, fertilizer,etc, and has maintained long-term cooperative relations with many leading enterprises in the food and feed industry at home and abroad. Such as: DBN Group, CP Group, ALPHA FEED Group, TONGWEI Group, Agrifirm, HEMEIHUA Group, COFCO Group and Cargill , DSM , Nuscience , Corey nutrition, etc.

In 2019, Donser established a packaging research Lab, and set up a number of experimental instruments and equipment for food-grade packaging testing, with scientific research-level laboratories for packaging industry, Our QC team can keep high level quality control and providing product report every order.

Donser has become the first company in China passed BRCGS certificate in both flexible and pp woven packaging for food industry in 2020. Also passed international certifications such as ISO9001, ISO14001, ISO18001.

With our philosophy of "We, spreading your brands", Donser continuously improves packaging technology , uses superior products and high-quality Services win the recognition of customers, and endeavor to become the most influential packaging company in the industry.

Gräfenhof Tee GmbH, founded by the brothers Kevin and Janek Köpcke, is an innovative company in the tea and herbal wholesale sector.
As a leading supplier in the industry, we only provide our customers with top quality products. We rely on the very best ingredients and refine them into excellent end products. Of course, our commitment to quality also includes our flavours. Whether a high-quality tea blend made from organic raw materials or the conventional variant without organic raw materials - we only use natural organic flavours.
In addition to raw materials and a large selection of ready-made blends, we specialise in the individual development of teas to customer specifications. We are happy to advise our customers and develop the ideal product together with them.
We also offer the filling of the products in various forms of packaging. No matter how you want to present your product - with us it is possible.
Manufacture - quality through optimized production process
Gentle processing of raw materials, consistent taste and quality without fluctuations. This is the basis for true tea enjoyment. We have developed a production process that meets these requirements. In addition, our teas are regularly checked and tested by our quality assurance department. This ensures that our customers always receive consistent quality.
Overcoming every hurdle together!
Whether it's building your own tea brand, opening a shop, launching an online shop or other projects such as your own tea blend. As a competent and reliable partner, we are at your side and together we will find the perfect solution for you.
Contact us. We are looking forward to advise you!

Leser GmbH – Your Global Partner for High-Quality Packaging Solutions
Leser GmbH, based in Lahr, Germany, has been a specialist in exclusive packaging since 1937. As a family-owned business in its fifth generation, we develop and produce tailor-made packaging concepts that showcase brands and products optimally worldwide. Today, thousands of customers from over 80 countries trust us – from small retailers to international brands.
Our portfolio includes jewelry and gift packaging, premium cartons, custom shopping bags, decorative items, and sustainable solutions under our GreenPack by LESER label. By combining craftsmanship with state-of-the-art production technology, we can reliably deliver both small series and large production volumes on time.
Quality is our standard: in 1998, we became the first company in our industry to be certified according to DIN EN ISO 9001. We also consistently focus on sustainability – many of our products are FSC® certified and produced with full supply chain compliance. With GreenPack by LESER, we offer packaging made from recycled materials, bioplastics, and environmentally friendly cartons.
With over 85 years of experience and international presence, Leser GmbH stands for packaging that protects products, conveys brand values, and makes an impression worldwide. Anyone seeking quality, reliability, and sustainability will find a strong partner in us.