4、The product also has a good oil (or grease) proofness, and efficiently get rid of the oil (or grease).
1、feather proofness test
6、And the benefits arising from this work including water-proofness, precision and durability are the result of Rolex's continuous pursuit of perfection.
5、Another possibility to check approximately the feather and down proofness is to measure the air permeability of the fabric.
7、The feather and down proofness is the most important quality request. It can be roughly calculated from the construction data of the fabric.
3、Firstly, the importance of voting rules study and the necessity of strategy-proofness study are described.
2、Macromolecule composite belt shielding with low impedance and thereby enhance explode-proofness and safety of cable.
