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1993

Establish Changzheng Chemical and Glass Co., Ltd.


2001

Establish Kelong Chemical Reagent Factory


2012

Establish Kelong Chemical Co., Ltd.


2016

KNOWLES Break through domestic technical barriers and reach advanced international level


2017

Kelong Chemical expand the national layout


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028 - 84518160

ADDRESS:
No.16,Line 5.Yangheng Road,Yangan Industrial Zone,Qionglai,Chengdu,China.
POSTCODE: 611534
E-MAIL: info@yobzl.com
Complaint email: service@yobzl.com

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