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The face mask hangs from the head piece by a central hinge, and would be fastened with straps connecting a loop under each ear with corresponding holes in the neck guard. [ 1 ] [ 2 ] [ 3 ] The entire helmet, the iron core of which is between 1 and 6 millimetres thick, [ 4 ] weighs 2.217 kg (4.89 lb), of which the face mask comprises 982 g (2.16 ...
SAE 316 and SAE 316L stainless steel, also referred to as marine grade stainless, is a chromium, nickel, molybdenum alloy of steel that exhibits relatively good strength and corrosion resistance. 316L is the low carbon version of 316 stainless steel. [2] 316L in particular is biocompatible when produced to ASTM F138 / F139. [3] It is a common ...
A slap bracelet (or snap bracelet) is a bracelet invented by Wisconsin teacher Stuart Anders in 1983, sold originally under the brand name of "Slap Wrap". Consisting of layered, flexible stainless steel bistable spring bands sealed within a fabric , silicone , or plastic cover, it can snap around a wrist when slapped on it with some force.
Chongqing Iron and Steel Company Limited (SEHK: 1053,SSE: 601005), or CISC is an iron and steel manufacturing state-owned enterprise in Chongqing, China. Formerly " Hanyang Iron Plant" in Wuhan , it was established in 1890 during the Qing dynasty by Zhang Zhidong , the governor of Hu-Guang Area (now separately Hubei , Hunan and Guangdong ).
R (reusable): if the filtering half-face mask can be used for more than one working day, so it is reusable. Additional suffixes include: Anti-clogging NR masks (D). When the half mask has passed the dolomite dust test, a letter D can be added to indicate that the service life may exceed 8 h. [14] Example: FFP3 NR D. Valve.
A World War I British P Helmet, c. 1915 Zelinsky–Kummant protivogaz, designed in 1915, was one of the first modern-type full-head protection gas masks with a detachable filter and eyelet glasses, shown here worn by U.S. Army soldier (USAWC photo) Indian muleteers and mule wearing gas masks, France, February 21, 1940 A Polish SzM-41M KF gas mask, used from the 1950s through to the 1980s
A kara, or kada (Punjabi: ਕੜਾ (), کڑا कड़ा ()), is a steel or cast iron bangle worn by Sikhs and sometimes Indian people of other religions. [1] [2] Sikhism preaches the importance of equality and having reverence for God at all times, which is represented through the five Ks—ceremonial items worn or used by Sikhs who have been initiated into the Khalsa, of which kara is one.
Another jade bracelet may be given by a mother-in-law to her new daughter-in-law when she gets married. [8] There is a belief in China which says that if a jade bracelet breaks, the death of its wearer has been supplanted by the broken bracelet. [10]: 160 Jade bracelets continue to be prized and worn nowadays. It is also currently used as a ...
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