ข้อมูลScrew-threaded joints (casing joints used in deep-drilling E21B0017080000; joints sealed primarily by means other than engagement of screw-threads, see the relevant groups characterised by the sealing arrangements);Forms of screw-threads for such joints

เวอร์ชั่นข้อมูล

เวอร์ชั่น รหัส / code คำอธิบาย / code name เครื่องมือ
1 F16L0015000000 Screw-threaded joints (casing joints used in deep-drilling E21B0017080000; joints sealed primarily by means other than engagement of screw-threads, see the relevant groups characterised by the sealing arrangements);Forms of screw-threads for such joints 29/09/2562