The comprehensive correction instrument of optical interference methane detector is developed by using the principle of pressure communicator. Mainly used to verify the accuracy and air tightness of optical interference methane tester.
Technical index:
Measuring range: (0 ~ 100)% CH4
Basic error: one-half of the basic error of the instrument being calibrated. Air tightness: 700mmH2O (7000Pa) pressure for 5 minutes, pressure drop ≤10Pa
Power supply voltage: AC220V / 50Hz
Output voltage: 1.5V / 3V
Dimensions: 1335 mm × 260 mm × 180mm
Water column scale height: 750mm
Weight: 8kg
Hair extension storage bags with wooden hangers, these hair extensions storage bags will make your hair neat and tidy.
Made of durable non-woven fabric and transparent plastic, it can be used for a long time, which will not break easily to protect your wigs better. The strong and durable zipper gives you easy access to each bag, and makes sure that no dust, dirt or moisture will touch your hair until you want to use it again!
The silky satin bags are designed with two flat satin drawstrings at the both end for secure keeping. making the bags open or close conveniently. And it is very easy for you to carry your items in them with these two strings.
The stitches of the bags are tidy and close, and the ending of the bags are finished well, so you do not need to worry about the holes on sides and they are strong enough to hold so many items.
You can get a lot of things into the bags with the very big size, not only the gifts, but also the daily small clothes, needle things or used as the knitting organization bag. It is perfect for hair bundles, wigs, gift wrapping, kitting bags, toys, small clothes bags, birthday, parties, celebrations, business and so on.
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Xuchang Le Yi De Import And Export Trade Co., Ltd. , https://www.alileaderbeautys.com