Nalco Netherlands Customer Service | Tel: +31107994080 | Fax: +31715241291 | Email: custserv.nl@nalco.com
Nalco Netherlands LeidenIr. G. Tjalmaweg 1Oegstgeest, Netherlands 2342 BV
电话：+31-71-524-1100传真：+31-71-524-1197
