浮箍浮鞋
Floating Hoop Shoe

PFJG-M型漂浮接箍 
Model PFJG-M Flotation Collar

特点   Characteristics

1. The core USES special fragile materials,which are brokeninto sm
all particles and easily carried out of the groundby mud.
2. A special rubber plug is provided.If the rybber plugencounters r
esistance in the downward pro'cess of thesleeve tube,the stuffy rub
ber plug can continue to replaceit to prevent the top from moving
and form a cementplug.

*可根据客户需求，设计加工其它规格产品*