Casing centralizer characters: 

1) Bow springs made of spring steel which has been heat teated and hardened tempered to ensure proper and consistent spring characteristics. 

2) End collar hinges are folded toward inside. This way will minimize the collar stretch taht tends to occur when centralizers encounter tapers, commonly found in certain type of pipe connections. 

3)A reinforcing rib stamped into the end collar. This way will strengthen and preserve it's round configuration during transport. 

4)Several different spring bow heights that are available to accommodate most of casing-to-hole configuration. 

5)Centralizers with built-in stop devices as well as those uncommon sizes are available based on request.