1. First, the plastic bucket must not have leakage, the appearance should be basically round, and there is no mechanical damage at the edge of the seal at both ends.
2. The other part of the barrel body has no deformation of the concavity caused by a large area of external force, and the deformed part shall not form an acute angle or damage the thickness of the iron sheet.
3, plastic barrel lid and barrel bottom deformation can not bulge.
4, to ensure the tightness of plastic drums.https://www.fhpails.com/