Customs and quarantine inspection for our Export hydrofluoric acid

we are required to apply Customs and Quarantine inspection for goods of hydrofluoric acid before shipment, then the Customs will issue us the Customs Access and Packaging Certificate for Dangerous Goods if everything is qualified. Usually, it takes about a week to finish this process. and most of our products are involved in Customs and quarantine inspection, such as Ammonium bifluoride, hydrofluoric acid, fluorozirconic acid, fluorosilicic acid, sodium fluoride, potassium hydrogen fluoride, magnesium fluorocilicate.