We signed cooperate contracts with Chengdu...                              2005-03-21
  
 
MW Series of RO Membrane elements were exported …          2005-02-01
  
  MW Series of Spiral UF Membrane Elements earned… 　                2004-12-20  
  The appliance of MW Series of RO Membrane elements…                2004-05-01  
  We passed the authentication of ISO9001 Quality System … 　 2004-05-01