日韩经典av I 美女又大又黄www免费网站 I 一级性生活黄色片 I 亚洲一区伦理 I 亚洲成色www久久网站夜月 I 国产精品久久久久久久久久免费 I 懂色一区二区三区久久久 I 久久亚洲精品无码av I 精品视频一区二区在线观看 I 视频一区二区不卡 I 中文字幕视频 I 欧美国产视频在线 I 欧美日韩偷拍视频 I 免费福利av I 色欲久久久天天天综合网精品 I 中文字字幕乱码视频高清 I 久久综合久久久 I 伊人亚洲综合影院首页 I 午夜乱轮 I 亚洲а∨天堂男人无码2008 I 日韩特级黄色片 I 日日躁狠狠躁狠狠爱 I 成人性视频在线播放 I 国产精品mm I 日本免费看黄 I 成人午夜精品久久久久久久3d I 中文字幕av在线不卡 I 玖玖爱这里只有精品视频 I 婷婷伊人五月天 I 四虎国产精品亚洲一区久久特色 I 免费人妻av无码专区 I 欧美老女人性视频 I 精品国产一区久久 I 艳妇臀荡乳欲伦交换电影 I 亚洲sss综合天堂久久

Application:

Stop collar can be installed on any position of casing to limit the axial movement of centralizers and cement baskets, which ensures the positions of centralizers or cement basket to meet the design.

The stop collars are available in three types: Set Screw Type, Spiral Nail Type and Snap-fit Type. There are hinged and slip-on styles and they can fit 4-1/2” to 20”+ any size pipe.

Usage Method

1). Slip-on stop collar with set screw, first set into the casing, and then using a wrench to tighten the set screws.

2). Hinged stop collar with spiral nail, first set into the casing, and then insert spiral nails, hammer to latch.

3). Snap fit stop collar, first set into the casing, stab the pin into the ring, latch by hammering the pin.

Technical Paramete