... -1219.2mm 2.WT: 1.24-60mm 3. Material:A25,A,B,X42,X46,X52,X56,X60,X65, ... according to API SPEC 5D OD (in). OD (mm) W(lb/ft) W(kg/m) Material Th(in) Th ... system and API Spec 5DP production standard. We have a complete set of inspection process, inspection for raw material, magnetic particle ... are machined by CNC Lathes and inspected with API Spec standard thread gauges. To improve the galling-resistance ...