一级做a爰片性色毛片成人久久久国产一级a毛|欧美激情国产精品视频一区二区|婷婷综合尤物精品国产|91香蕉亚洲精品人人影视|亚洲精品免费日日日夜夜夜夜|亚洲永久精品免费www51zcm|日韩永久精品大片www|天天综合丨国产丨精品入口

Copper covered steel ground rod

Online Inquiry

ProductName * :

E-mail * :

Contacts :

Tel :

Content :

Validatecode * :

Various grounding systems with different potentials are grounded through ground busbars to eliminate potential differences between grounds.

Model

250*50*8

Copper 4 holes

300*100*8

Copper 8 holes

400*100*6

Copper 12 holes

400*100*8

Copper 16 holes

400*100*10

Copper 20 holes

Maximum discharge current Imax ( 8/20ms)

250kA

250KA