When vs Was 1700 mm/s: Analyzing Sentence Structure and Grammar

This sentence does not contain any grammatical errors. 'When vs was 1700 mm/s, the (h1, h2, h) under P of 30 W, 15 W and 1.5 W were (3.5±0.2 μm, 2.2±0.3 μm, 5.7±0.5 μm), (1.7±0.1 μm, 2.1±0.1 μm, 3.8±0.2 μm), and (1.7±0.2 μm, 1.4±0.1 μm, 3.1±0.3 μm), respectively.' While the sentence is complex, the use of 'when' and 'was' in this context is appropriate and conveys the intended meaning clearly.