4 Utility Patents
#9,292 in Beijing
#33,688 in China
Forward Citations = 0
Company Filing History:
Central Iron and Steel Research Institute
Yanshan University
Handan Xinxing Special Steel Pipes Co. , Ltd.
4. 1 out of 1
Hesel Xiongan Kecheng Inspection and Certification Co., Ltd.
5. 1 out of 1
Beijing No.6 Construction Engineering Quality Test Department Co., Ltd
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