Apart from finish end quality control inspections , in-built System devices , periodical schedulied calibrations , stagewise screening through internal checks etc. are instrumental in quality assurance of the product . Our Quality Control Testing passes through the following steps - 1 . DROP TESTING 2 . HYDROSTATIC TESTING 3 . PNEUMATIC TESTING 4 . PIN HOLE TESTING 5 . STACKING TEST 6 . CLOSURE LEAKAGE TESTING 7 . HANDLE STRENGTH TESTING 8 . WALL THICKNESS TESTING 9 . PRINT ADHESION TESTING