4 1/2"-20"
ISO 9001:2000, ISO 9001:2008, API
Spray-Paint
Elastic
One Piece
60si2mn
Centralizer
Customised
Wooden Case
4-20"
Shandong
8431431
Product Description
By using the spring steel plates, the product is processed by laser cutting, crimp molding and strict heat treatment. It's designed with the guide structure which changed the mechanical principle in the use of the product.
With the advanced production technology, good performance and high reliability, the product performs well in centering of the undergauged intervals. It has low drilling force and maximum restoring force.
With the advanced production technology, good performance and high reliability, the product performs well in centering of the undergauged intervals. It has low drilling force and maximum restoring force.
