




Industrial sectors
Every sector runs on components. We keep them running.
Rainbow repairs, reconditions and manufactures mechanical components for the industries that cannot afford to stop. Choose your sector to see what it demands and what we bring to it.
Eight sectors
Pick your industry
Each sector has its own page: the engineering reality of that industry, the requirements it places on a machine shop, the specialities we bring and the licences behind them.
Connection licences
Licensed to cut the thread, not just the metal
A tubular connection is not an ordinary thread. Premium connections seal metal-to-metal, giving gas-tight integrity without relying on thread compound — which is what makes them viable in sour and high-pressure/high-temperature wells. Because the thread form is the OEM's proprietary design, it can only be cut, repaired and gauged by a workshop the OEM has licensed and audited. That licence is what allows a repaired joint to go back in the hole with its original standing intact.
API monogram licences
The American Petroleum Institute licenses our shop against five specifications covering tubulars, threading and wellhead equipment — the scope that lets us certify, not just machine.
- API 5CT5CT-1469
Casing & tubing
- API 5B5B-0535
Threading, gauging & inspection of casing, tubing and line-pipe threads
- API 6A6A-2544
Wellhead & christmas-tree equipment
- API 7-17-1-0547
Rotary drill-stem elements
- API 7-27-2-0899
Threading & gauging of rotary shouldered connections
OEM premium connection licences
Six mill and OEM qualifications authorising Rainbow to work their proprietary connections as an approved workshop.
- Jiangsu Shuguang HuayangJSH-2106-19 · to 11 Jul 2031
Authorised workshop for JSHET, HYHT & HYDS premium drill-pipe connections
- Interpipe25/0109 · to 14 Jan 2030
Official workshop for UPJ-M & UPJ-F premium connections
- TMKvalid to 2027
Tubular connection qualification
- TPCQ2025–2027
Premium connection qualification
- VAGT2025
Tubular connection qualification
- ArcelorMittalcertified
Tubular qualification
Every application
The full component list
Components often serve more than one sector, so they appear on every sector page they are relevant to. Here is the complete list in one place.

Start a project
Tell us which sector you're in
Send us the component, the duty and the deadline. Our engineers will come back with the repair or manufacturing route — and the licence it sits under.









