Cummins and Yunnei icons added to gas page
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Beijing Integrity Technology Co. ，Ltd all right reserved. |
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Address: West 4th Ring Rd 56 Zhongguancun Science and Technology Park Fengtai Park，Beijing |
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Hotline: 400 6615 919 Fax：010-5121 0058 Email：ecudts@126.com |
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