API 5L vulgo ad fistulam lineam, API 5L fistulam lineam, tibia linea est oleum, vaporem et aquam e terra extractum ad oleum et industriam gasorum per fistulam rectam deferre.Fistula recta includit inconsutilem fistulam et fistulam ferream iuncta.Extremitates planae, extremitates stamineae et nervum extremitates habent;connexio modi sunt glutino, copulatio, nexus, nexus nervus, etc.
| PSL | Delivery Condition | Pipe gradus |
| PSL1 | Sicut-volutus, normalized, normalizing formatus | A |
| Sicut-volutus, normalizing convolutus, thermomechanicus convolutus, thermo-mechanicus formatus, normalizans formatus, normalizatus, normalizatus et temperans vel tantum constat Q&T SMLS | B | |
| Sicut-volutus, normalizing convolutus, thermomechanicus convolutus, thermo-mechanicus formatus, normalizans formatus, normalizatus, normalizatus et temperans. | X42, X46, X52, X56, X60, X65, X70 .; | |
| PSL 2 | Ut-advolvit | BR |
| Normalising involutus, normalizing formatus, normalized vel normalized et temperatus | BN, X42N, X46N, X52N, X56N, X60N | |
| exstinguitur et temperatur | BQ, X42Q, X46Q, X56Q, X60Q, X65Q, X70Q, X80Q, X90Q, X100Q | |
| Thermomechanical involutus vel thermomechanicus formatus | BM, X42M, X46M, X56M, X60M, X65M, X70M, X80M | |
| Thermomechanical advolvit | X90M, X100M, X120M | |
| Sufficiat (R, N, Q vel M) pro gradibus PSL2, pertinet ad gradus ferri |
1. Principalis processus productionis fistulae calido-volutae inconsutilem ferro (main inspectionem processus);
Tubus blank praeparatio et inspectio → tubus blank calefactio → tubus perforans → tubus volvens → ferrum retrahens → fixum (reducitur) diametri → calor curatio △ → perfecta tubus erigitor → finiens → inspectionem (non perniciosa , physica et chemica , Taiwan inspectionem ) → horrea
2. Praecipua processus productionis fistulae ferro frigido-volutae inconsutiles;
TUBULUS praeparatio → legendo lubricationis → volvens frigus (trahens) → calor curatio → directio → consummatio → inspectionem
