FIELD: process engineering.
SUBSTANCE: invention relates to production of fluid and gas flow path devices with low-height channel bores. Recess is etched on the strip to be twisted. Note here that before making said recess, said strip is coated with etching-resistant paint except for the site of would-be recess. After etching of preset-size channel bore said pint is washed off.
EFFECT: high precision of channel bores.
2 cl, 3 dwg
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