belpw is our company's insp.method,for your reference:
1.assembly check on s-1
2.leakage test on s-1
3.normal function check on s-1
4.loading test (150kgs)for tray check on s-1
5.impact test (225g) steel ball 1m height on 2-1
6.tempered glass check on 1 pc
7.drain test for tray check on s-1
8.measured thickness of material (3.0mm) &check the holes on tray & panel.