... is about 300mm). Manual Gland clampMain FeatureIt is special designed for sealing standard barrels in industries of paints, coating, chemical, ... nut.The manual gland clamp (sealing clamp) is mainly used for sealing open barrels, paint barrels, oil barrels, paint drum, ... liters, 18 liters and 20 liters. It is widely applicable for liquid package in the industries field of Coopery, Can making, ...