Jinan Transformer Group Ltd. Liability Co. is a specialized manufacturer of transformer tank and accessorial metal structure parts. It is also the national largest, most advantaged specialized tank production basis with national advantage tank producing line: steel plate pretreatment line, sand blast post processing, NC flame cutting, plasma cutting, America CO2 gas shielded welder, 800t bender, corrugated tank production line from GEORG Co., Germany, whole tank painting equipment etc. to produce super, large transformer tank, metal structure parts, corrugated tanks for small transformers. The whole production technics follows to DIN and relevant international Standards. The major welder has obtained the welding Certificate issued by Ship-classification Society of Germany. As appointed tanks supplier to Siemens Transformer Co. Ltd. and Guangzhou Elin transformer Co., Ltd., the periodic technical instruction at site from them are frequent, it can ensure that tanks' quality at world synchronization advanced level. In the last several years, over 800 units tanks of 110kv, 220kv, 330kv, 500kv with high standard, high quality are provided to Siemens and Elin.