Before bulk production, there is an important step that confirm the pre-production sample.
Then our technicians, workers and QC will carry out strictly accoring to sample standard.
There will be a finial inspection before shippment.
Also we will take out few pieces from bulk to test by natural climate and time.
Base on the two materials, PPR we guarantee 3 years, NYLON we guarantee 5 years.
During the warranty period, if any damages there because of quality problems, we promise a free replacement.