国语对白做受69-秋霞成人-四虎影院在线-黄色网在线-亚洲精品成a人在线观看-av观看免费-91免费看国产-亚洲精品久久久久久无码色欲四季-中文字幕精品三区-日韩电影一区二区-手机看片日韩欧美-免费香蕉视频-激情aaa-妖精视频一区二区-日韩国产欧美视频-国产乱真实合集-91国产精品一区-吃奶摸下的激烈视频-99久久婷婷国产-日本人六九视频-欧美特级a-久久盗摄-国产日韩亚洲精品-一区二区三区天堂-中文字幕在线视频精品

Hinged Non Welded Bow Centralizer

Specifications：

API 10D casing centralizer
1. Material: 65Mn
2. Double and single bow centralizer
3. Non-weld and welded type.

Usage:

1. Non-welded and welded bow spring casing centralizer is applied to centralize casing in wellbore, and improve cementing quality.

2. The non-welded and welded bow spring centralizer are made under the state of art engineering techniques and rugged quality system.

3. They are developed to exceed API 10D specification to be used under most demanding condition.

4. These centralizers are designed for high restoring force and low started force for centralizing the casing pipe in a vertical, horizontal and deviated well.

Features:
1. Every attachment is pressed into shape by moulding instead of welding and rivet.

2. 3-section structure for easy transport.
3. Starting force and restoring force conform to API standards.
4. Easy-and-convenient to use.
5. Alternative turbulence plates can effectively improve displacement efficiency.

6. They are available in 4 1/2"--20" sizes.

7. Premium quality bows are made of special alloy steel and hot formed in totally controlled heat treatment plant to achieve the uniform hardness all over and good spring action.

8. End collars are designed with self-locking action, which are easy to assemble, time saver and are having strong grip.

9. The five standard size bows can configure to any hole idea.

10. These bows with extended profile prevent them from hitting against casing collars.