德国 KGW-Isotherm 
KGW-ISOTHERM是德国专业杜瓦瓶生产厂商，其产品强度高，绝热性能好，产品规格齐全，是目前全球最大的杜瓦瓶生产商，多种形状的杜瓦瓶可供选择：圆柱形杜瓦瓶，碟形杜瓦瓶，带螺口杜瓦瓶，带法兰接口杜瓦瓶等适合储存运输液氮，干冰等低温品
特别适合与JULABO FT-402, FT-902数字型低温制冷仪配合，进行超低温生物化学反应
Since more than 50 years KGW-Isotherm is manufacturer of glass- made laboratory apparatus. The company markets its products world-wide and has settled sales partners in various countries.

A constant and high quality of the manufactured products is maintained by regular product quality control and control of the suppliers. Modern production methods and the utilization of CAD in the construction do not only render the possibility for fabrication of serial products but also the make of customer specific single-piece products.

Monitoring of the measuring and control systems by utilization of calibrated vacuum-measuring-cells and temperature-control-systems at the furnaces, as well as the employment of He-leakage-detectors and a compression testing system with a calibrated reading device, guarantee the make of products with constant quality.

Besides the production of more than 200 different Dewar vessels and cryo-vessels for liquid gases and other cooling agents, the enterprise manufactures additionally low-temperature cooling systems for temperatures reaching down to - 180° C, more than 360 different reaction vessels made of glass, vacuum-insulated columns as well as heat protection devices for data measuring logs for a temperature range of - 100° C to + 600° C.

Apart from the fabrication of serial products, the enterprise owns a glass blowing workshop for the production of customer specific vessels and glass parts constructed in single units.