About Wojin

Since its establishment in 2012, Wojin Plastic Products Factory has focused on the R&D and production of one-way degassing valves and semi-automatic valve applicator. It has brought in a fully automatic production line from Japan with a daily production capacity of 200,000 and a product qualification rate of 99.9997%. The company strictly controls product quality, strictly monitors each step of the product manufacture, and implements the 6sigma management. We guarantee the delivery on time and have 24-hour online customer support. Let our "coffee degassing valve retains the aroma of your coffee".
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ISO Certified Manufacturing for Coffee Bag Valves

30 May 2026

WOJIN is an ISO certified manufacturer providing stable and reliable one way degassing valves for coffee packaging.

The important role of valve applicator in coffee packaging

28 Apr 2026

Valve press machines can precisely install one-way exhaust valves, helping coffee businesses improve production efficiency and ensure product freshness.

WOJIN Participates in HOTELEX 2026

30 Mar 2026

WOJIN showcased the degassing valves and valve applicator at HOTELEX 2026, connecting with global customers and gaining insights into coffee packaging needs.

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