निविदा नंबर : SDG7642P19/06
| शीर्षक | निविदा श्रेणी | निविदा तारीख | दस्तावेज़ का प्रकार | निविदा दस्तावेज |
|---|---|---|---|---|
| Rotary substitutes manufactured from AISI 4145 H odified alloy steel fully heat-treated to 285-341 Brinell hardness and 52 Joules minimum impact strength conforming to the requirement of API Spec 7. All connections are to be machined and finished to API standards. Thread roots are to be cold rolled. Connections are phosphatized, coated with lubricant and equipped with pressed steel thread protectors installed at both ends. | Global | 05-05-2018 | NIT | - |