Energy + Environment
Qingdao Duratight Sealing Product Co., Ltd.
Located in Qingdao City of Zhejiang Province, Qingdao Duratight is a professional and reliable manufacturer of graphite related products. All kinds of products are extensively applied in those industrial fields ...
System Certification: ISO 9001:2000
Sinopec Qingjiang Petrochemical Co., Ltd.
Sinopec Qingjiang Petrochemical Co., Ltd. is a large scale state owned petrochemicals enterprise with a history of more than 40 years. Our company has made enormous contributions to the national ...
System Certification: ISO 9001:2000 • ISO 14001
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