1) 30"Drilling spool
2)API Spec 16A ,Q1,ISO9001,TS
3)H2S Trim.
30"Drilling spoolAccording to the latest API Spec 16A standard,NACE MR-01- 75and quality standard of ISO9001.H2S Trim.the ring grooves flanges are all lined with the corrosion resistant alloy
30"Drilling spool