The stainless stop collars are available in three types: Knock-On Type, Spiral Nail Type and Set Screw Type.
The stainless stop collars can be installed on any position on casing to limit the axial movement of centralizers and cement baskets.
Stop Collar(Snap Ring)Type
Packaging & Shipping
plywood cases or as requested
Other products supply:
1. pumping unit 2. Tubing pump/sucker rod pump and accessories 3. Float collar and float shoe 4. Casing centralizer 5. Cementing plug 6. Cementing head 7. Stage Collar 8. Casing/ Tubing coupling 9. Drill pipe 10. Sucker rod 11. Thread protector 12. Air blaster
The predecessor of Henan Puyang Zhongshi Group Co. Ltd, was the 5th Machine Repairing Factory of Puyang Zhongyuan Oil field, Sinopec Corp. In 1997, after being restructured according to the modern corporate system, the factory was named Puyang Zhongshi Group Co.,Ltd.
With registered capital of 60,840,000 yuan, Puyang Zhongshi Group is composed of 9 subsidiaries, including 8 manufacturers and 1 trade company. Zhongshi Group covers an area of 200,000 sq.m, including workshop area of 50,000 sq.m. Various kinds of production equipment values 38,600,000 yuan. It has a strong mechanical processing capability.
Our leading products are pumping unit, tubing pump & sucker rod pump, cementing accessories, down-hole tools, wellhead (X-mas tree), drilling solid control series, pressure vessel ,camping house, air cannon, belt feeder and so on. They are mainly supplied to Central Asia, Southeast Asia, Africa and Middle East and many other countries.
Zhongshi Group has been the Tier One internet service provider of Sinopec. We passed ISO9001 quality management system certification and got approved to use API monograms on its oil machineries. So far, we have attained API 5CT, API 10D, API 11AX, API 11E and more are applying for.
With strong technical backup, reliable product quality, advanced marketing regime and good service system, this company wins popularity and recognition of vast consumers home and abroad.
We would like to faithfully cooperate with friends from all circles with classic products and service to achieve common development.