haihang

Compared with the traditional methods, such as embedded fixation, hole casting, bolt connection and welding, Haihang nail fastening technology has many advantages.

海行射钉紧固技术与传统的预埋固定，打洞浇注，螺栓连接及焊接等方法相比，具有许多优越性。

It is involved in emergency deployment of the airlines and aircraft have: Shenzhen Airlines plane 4, Air plane 2, Southern 2, Haihang 1.

据悉，参与紧急调配的航空公司及飞机有：深航4架飞机，国航2架飞机，南航2架，海航1架。