中文字幕av线,色必久久,日韩精品中文字幕在线播放,中文字幕日韩视频,中文字幕av88,国产老女人高潮大全,偷拍久久网

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.wanka5151.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

张北县| 木兰县| 梓潼县| 灌阳县| 六盘水市| 托克托县| 东乌| 塘沽区| 景德镇市| 库尔勒市| 惠东县| 潮州市| 肥城市| 华亭县| 尤溪县| 云浮市| 肥西县| 吴江市| 台前县| 龙游县| 九龙城区| 富锦市| 元阳县| 基隆市| 花垣县| 铁岭市| 无锡市| 渝北区| 长宁区| 七台河市| 东明县| 桓台县| 塔河县| 瓦房店市| 顺平县| 湄潭县| 准格尔旗| 腾冲县| 奈曼旗| 中西区| 永城市|