We strictly carry out API spec Q1 quality control system and API spec 5D production standard.

Specification:27/8  31/2 5

WS: 10.40 13.30 19.50 17.95

Plain End Weight(ib/ft) : 9.72   13.32   17.95   17.95

OD: 2.875  3.500  5.000   5.000

Wall Tickness: 0.362  0.368  0.362   0.362 

Grade: E X G S