PRODUCTS
 
 Mechanical Stage Collar
 
 
 
特点:(1)防转机构可确保钻内套时不会损坏关闭套;
         (2)打开、关闭时,均不存在小腔液体压缩问题;
         (3)全部附件均由可钻性好的材料制成,容易钻除;
         (4)配合顶替型打开塞,可用于连续分级注水泥作业。
 
 
Telephone: 1-780-729-7064    Fax: 1-780-922-7061    Address:#6, Min Feng Road Jingbin Industrial Area Tianjin, China, 301712
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