Chemical barrels surface paint quality: the lid and the bottom of the barrel distortion can not muster. The outer surface of the barrel should be sprayed in green alkyd or phenolic coatings, paint quality selection must meet the quality requirements of the corresponding national varieties paint, spraying color uniform, smooth, wrinkle-free flowing and other defects, does not leak background. 
     Quality plastic chemical barrels Appearance: There shall be no leakage of drums, the appearance should be basically round ends sealed edges no mechanical damage, other parts of the body barrel distortion without clashing forces caused a large area and small area may not be more than nine deformation and deformed or damaged portions shall form an acute angle iron thickness.