1481356624160293.png  1481356625588168.png  1481356625354056.png  1481356624545822.png  1481356624112719.png        Welcome to Visite our Official Website www.qduc.com.cn 

Adblue/DEF/AUS32/Arla/SCR urea supplier


  • About DEF® UREA

    DEF® is a registered trademark of QINGDAO UNITED CHEMICAL and the DEF® UREA is produced under licence from QINGDAO UNITED CHEMICAL CO., LTD and complies with the ISO 22241 standard.

  • About adblue trademark

    AdBlue®Information about VDA-trademark AdBlue®The requirements for reduction of car emissions (in EU e.g. Euro 5 in 2009) are increasing on a worldwide scale. SCR-systems (SCR=selective catalytic

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