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To build a century-old brand and the most reliable sewing brand in the world

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Encoder Angle and Upper Stop Needle Position Adjustment Method

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Dual-knife tool holder positioning and stepper crank positioning

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Dual-step thread-cutting distance test adjustment

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Two-step thread-cutting angle adjustment

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Dual-step encoder angle and upper stop pin position adjustment

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Thread-cutting distance test adjustment

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Building a century-old Shunfa: Establishing a globally trusted sewing brand.

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