The length of the oil casing pipe must be defined when the customer inquiries. As a casing tubing supplier and manufacturer,we are according with API 5CT strictly. Our all tubing meet API requirements. 

API 5CT Range 1 = 18’ – 20’; = 5.49-6.71m
API 5CT Range 2 = 27’ – 30’; = 8.23-9.14m
API 5CT Range 3 = 38’ – 45’; = 11.58-13.72m

End Finish: Plain End or API threads: LTC, BTC or STC