1.certification ISO9001 ISO14001 2.made with IEC ANSL 3.low loss, pollution free 4. ... ,SSZ9,SFSZ9,S10,SFZ10 and SFSZ10 series oil-immersed transformer ,with voltage class 10--110KV, and capacity 30--90000KVA. Supported by new ... Excellence and Ministry Excellence. Therefore the products of SHANXI HANZHONG TRANSFORMER CO.LTD are sold far to Singapore,Philippine,Malaysia,Thailand ...