- About shipping
- How long is your warranty and what documents are available to prove your quality?
- If the product has a quality problem, how to conduct after-sales service？
- What about your main market?
- The film of blowing machine seems not transparent enough，what should I do？
- What if I want to do a BV test？
- My payment |The production and transportation process of the factory？
- What is your main advantage？
- What are your main products？
- Does Donya packaging machinery co., LTD. Is your company too？
- Process flow of bubble film and bubble bag？
- How to save the power consumption of the blowing machine?
- What are the causes of problems in the production of air cushion membrane machine?
- What is the attention of bubble film machine?
- How do I find and evaluate a stretch wrap film supplier?