7 3K 7 5000PSI Annular BOP shaffer type
7 3K 7 5000PSI Annular BOP shaffer type
hydril Tapered annular BOP
hydril Tapered annular BOP
7 11 13 10K single Ram BOP
7 11 13 10K single Ram BOP
wellhead penetrator 35MPa and 70 MPa
wellhead penetrator 35MPa and 70 MPa
borosilicate glass tubes used in Transformer
borosilicate glass tubes used in Transformer