一级毛片视频免费观看,午夜免费成人,欧美性猛烈xxxx视频少妇少,我要看特级毛片,av毛片观看,一级做a免费看,国产精品毛片在线

Welcome to Jiaozuo Libo Light Alloy Co., Ltd.

Aluminum alloy sacrificial anode

magnesium anode, zinc anode

Telephone:

0391-7588881 +8618739187123

Jiaozuo Libo Light Alloy Co., Ltd.

News

News

Contact

Phone:18739187123

hotline:0391-7588881

E-mail:970512272@qq.com

Address:Wuzhi County, Jiaozuo City, China

Q & A

The principle and measurement method of current test pile in forced current cathodic protection are discussed

  • Author:Libo
  • Source:wm.beijingzhixunshejizhuangxiuwang.com
  • Date:2021-06-11
  • Click:0

The current testing pile is used to measure the flow direction and size of the current in the pipeline. It is composed of 4 test wires, two at each end of the measuring pipe section. The length of the pipe section is generally 30m.

Online
聯(lián)系方式

熱線電話

18739187123

上班時(shí)間

周一到周五

公司電話

0391-7588881

秦安县| 青阳县| 博野县| 兴化市| 西华县| 如东县| 松阳县| 自治县| 吴江市| 鄂尔多斯市| 丹巴县| 梨树县| 大荔县| 科技| 砀山县| 杭州市| 进贤县| 临猗县| 古田县| 尼木县| 施甸县| 巴中市| 建德市| 积石山| 区。| 施甸县| 盱眙县| 隆昌县| 古田县| 昭苏县| 巴中市| 绥中县| 壤塘县| 双鸭山市| 曲阜市| 博白县| 泾源县| 南通市| 济宁市| 门头沟区| 岳池县|