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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Products
Blog
Packaging That Needs a One-Way Degassing Valve
29 Jan 2026One way degassing valves release trapped gas, block outside air, suit gas-producing sealed products and prevent package swelling or bursting to preserve quality.
ISO and BRC System Audits Conducted in December 2025
30 Dec 2025In December, WOJIN completed ISO and BRC audits, reviewing production, quality control, process and identifying areas for continuous improvement.
WOJIN 13th Anniversary Team Building Journey
25 Nov 2025To celebrate WOJIN 13th anniversary, we proudly held a two-day team building activity that effectively strengthened teamwork and brought new energy.