| Contact us |
|
Guangzhou Tel: 020-81762527, 81012789,
81272884, 81752336
Fax: 020-81764254, 81752439
Company website: http://otft.cn
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 |
|
|
| Patent technology |
Your current position：Home > Technical support > Patent technology |
|
| Welding nail patent certificate |
|
|
 |
|
| Detailed information： |
此為國(guó)內(nèi)最早的焊釘專利證書(shū)，標(biāo)志著我國(guó)能用自己的設(shè)備自己的技術(shù)生產(chǎn)合格的焊釘了。對(duì)當(dāng)時(shí)國(guó)內(nèi)幕墻行業(yè)成本的降低有一定貢獻(xiàn)。 |
|
|
|
