Siemens Transformer (Guangzhou) Co., Ltd. (VA TECH ETGZ) is a Joint Venture between Siemens PTD and Guangzhou Machinery & Electric Group (Holding) Co., Ltd. All the products of VA TECH ETGZ, power transformers up to 500KV and distribution transformers up to 2500KVA, are designed and produced according to Elin. ... More