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".
Read More >>>
Products
Blog
Coffee Bean Storage Tubes with valve keeps coffee fresh and aromatic
05 Jun 2025The WOJIN coffee bean storage tubes features a built-in one way degassing valve, preserving coffee aroma and freshness, ideal for display and sampling.
WOJIN Conducts Employee Product Training Session
08 May 2025WOJIN quality control training combined theory and practice to equip employees with skills to identify defects while reinforcing the quality lies in details philosophy.
WOJIN Showcased Coffee Bag Degassing Valve Solutions at HOTELEX Shanghai
12 Apr 2025WOJIN took part in HOTELEX 2025, held at the National Exhibition and Convention Center in Shanghai.