Brief introduction:

1.plastic,new material.
2. high quality and efficiency, elaborate service. 
3. Manufactured under API Q1 system.

Specification:

Tubing:2 3/8"-4 1/2"OD

Casing 4 1/2"-9 5/8"BTC/LTC/STC/VAM Series/HUNTING Series

Drilling pipe:NC26-NC70,2 3/8"REG-8 5/8"REG,4"FH,5 1/2"FH,6 5/8"FH,and LH thread protector of most of the sizes.