Puyang Zhongshi Group export 9 5/8" and 13 3/8" BTC connection steel & plastic thread protectors to Thailand on October, 2024.
Steel&plastic thread protector is a kind of thread protector used for casing pipe. The strength of this type thread protector is higher than the full plastic type, so is used to protect the casing pipes' threads.
Puyang Zhongshi Group supply the steel&plastic thread protectors from 4 1/2" to 20", with API threads or premium threads. The processing technology for plastic thread protectors of Puyang Zhongshi Group is CNC machined, better than casting type. The quality is fine.