... S9, SZ9,SFZ9,SSZ9,SFSZ9,S10,SFZ10 and SFSZ10 series oil-immersed transformer ,with voltage class 10--110KV, and capacity 30--90000KVA. ... loos,lower noise, and oil leakage shall be avoided. The products have passed the 2002 state quality supervisory checking and have been ... Singapore,Philippine,Malaysia,Thailand, Iran,Syria,Arabia,Russia,Win a high and good reputation both domestically and aboad.