Walle Company (Dongguan Walle Sealing Technology Development Co., Ltd. Of Hong Kong Walle Sealing Technology Development Co., Ltd. ) has a variety of sealant formulations and advanced production equipment and testing equipment, using the most advanced materials and technology to meet customers extremely demanding job environment. In view of international developing, we introduce the well-known quality assurance system ISO9001: 2008 into our company to control every stage of the process. This is to achieve consistent and reliable services. Walle company has a flexible, with over 20 years experience in production and R & D technical staff, and international responsive service, providing customers with a variety of sealing solutions.

Our company is a professional manufacturer of laboratory products, engaged in the production, development and sales of high-tech trace analytical laboratory containers, to fill the gap in China.

Qingdao David Technology Co., Ltd. Located in Qingdao City of Shandong Province, is a professional manufacturer, designer and exporter of plastic and rubber products in China, we have manufactured and developed it since 2008, with high technology of working experience, we guarantee our products' quality is more excellent than others. We own three factories in Shandong Province and we have invested much funds and high technology on facilities and technology, so our market is expanding bigger and bigger.