Container and container matching class！
The body of the bottle should be stable, the surface should be smooth, and the thickness of the bottle wall should be basically uniform, without obvious scars, deformation, and no cold bursts and cracks. The bottle mouth should be straight and smooth, no burrs (burrs) should be used, and the thread and bayonet fitting structure should be intact and straight. The fit between the bottle and the cap should be tight, with no slippery teeth, loosening, and no leakage. The inside and outside of the bottle should be clean.
The body of the hose should be smooth, tidy, uniform in thickness, without obvious scratches, and uniform in color. The sealing of the hose should be firm and correct, and there should be no openings or wrinkles (except for the normal indentation of the mold). The composite membrane of the hose should not float.
The cover is divided into: PP material, ABS material, sarin material, PTCG material, K material, anodized aluminum, etc. Different materials are judged by experience such as touch, appearance, and falling rebound sound, and the disinfection methods are different.
Inner cover: The inner cover should be complete, smooth, clean and not deformed. The inner cap should fit well with the bottle and outer cap. The inner cover should not leak out.
Outer cover: The outer cover should be straight, smooth, free from broken, cracked, burrs (burrs). The color of the outer cover should be uniform. The threaded fitting structure of the outer cover should be intact.
The color of the outer cover with anodized aluminum or bronzing should be uniform. The outer cover of the clamshell type should be flipped up flexibly, and the connection part should not be broken. The fit between the cap and the bottle should be tight, without slippery teeth or looseness.
4. Spray cans.
The tank body is flat, no rust spots, smooth welding seam, no obvious scratches, concave tank phenomenon, and the color should be uniform. The roll mouth of the spray can should be smooth and free of wrinkles, cracks and deformation. The lid of the spray can shall meet the requirements of 5.3.2.
The nozzle should be upright, clean and free from damage and cracks. The assembly parts of the nozzle should be intact to ensure the smooth flow of the spray at night.