Established in the Oil Field in Puyang, Henan, China, Zhongshi Group Co. Ltd enjoys favorable conditions in making machines and offering related services in the oil drilling area. We are renowned for our excellent quality and reliable services. 

With improvements in technology and machinery, we have expanded our operating scale, thus further enlarging our business home and aboard. We are confident to provide you an extraordinary purchasing experience!

Zhongshi Brand Thread Protector can be used both in casing and tubing.

The size covers from   3/4"-20".

Plastic material makes the protector a lighter weight and resilient in protection.

Convenient installation.