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Guangzhou Tel: 020-81762527, 81012789,
81272884, 81752336
Fax: 020-81764254, 81752439
Company website: http://www.315415.net
Email, Guangzhou: gzyonglong168@126.com
Hubei hbyonglong@163.com
Headquarters address: No. 16, Tan tail Road, Liwan District bridge, Guangzhou, China
Hubei address: No. 50 Hubei road Zhongxiang xinmeixiang |
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| Patent technology |
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| Welding nail patent certificate |
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| Detailed information： |
此为国内最早的焊钉专利证书，标志着我国能用自己的设备自己的技术生产合格的焊钉了。对当时国内幕墙行业成本的降低有一定贡献。 |
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