![]() 优质密封圈 (优质弹性材料) | ![]() 低质密封圈 (不够密封,渗漏) |
---|---|
![]() ![]() ![]() 精密螺纹盖 | ![]() ![]() 粗糙螺纹盖 |
![]() 高性能过滤介质:
稳定持续燃料供应 | ![]() 劣质的过滤介质:
不稳定间歇燃料供应 |
![]() ![]() ![]() 压力处理和防腐外壳 | ![]() 质差且薄的保护外壳 过滤破裂危险 |
![]() 优质的排水阀 | ![]() 劣质的排水阀 |


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