What is the proportion of material cost to total production cost for air filters ?
2021-04-14

Nanjing Blue Sky Filter Co.,Ltd. is a internationally competitive vacuum cleaner extension pipe manufacturer. Blue Sky produces a number of different product series, including automobile filters. Our liquid filter bags is characterized by high performance and stable quality. Management has gradually improved in Blue Sky.

By adopting the first-class technical facilities, Blue Sky endeavors to provide the best. Please contact us!
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