... 2008,2.get class2 dangerous goods of un certificate3.cooperation with the U.S. Dow, Akzo Nobel, Huntsman, BASF ... tess than 20kpa,keep the pressure for 5 min without leakage.good air-seaing property6:ambient temper,-18*c ... ; stacking test: stack up in an environment with a temp more than 40*c,7.have high ... and powders and other chemicals packaging. 200L closed double layer double L ring plastic drum