At the core of our service is always the clients
Should you have any query, or suggestion, you may reach us through the following channel, and we would render you reply ASAP!

1.You may contact us through Tel.
Tel: +86 535 5203189 +86 535 5203569
Fax: +86 535 5203217

2.Or you may contact us through the following street address.

xishou minsheng road,qixia ShanDong P.R.CHINA(265300)

3.Email: aotongchem@188.com   qianjin_yi@188.com

4.Web Site: www.doilyun.com

5. Export Sales Representatives for: Asia Pacific ,Europe ,North America ,Africa
SINOZ CHEMICALS AND COMMODITIES PTY LTD
Email: queries@sinoz.com.au      www.sinoz.com.au
TEL:     +61 3 96463833 (head office)     +852 2650 9808 (Hong Kong)