Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.
lids hats caps
We provide exclusive customization of the products logo, using advanced printing technology and technology, not suitable for fading, solid and firm, scratch-proof and anti-smashing, and suitable for various scenes such as construction, mining, warehouse, inspection, etc. Our goal is to satisfy your needs. Demand, do your best.
Professional team work and production line which can make nice quality in short time.
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12/7/2015, · ,Woodpeckers, have exceptional physical resilience and tree-climbing abilities. Specially adapted to handle life on a tree trunk, the tail of a ,woodpecker, has sharp spikes that dig into the bark of a tree. As the ,woodpecker, holds on with its unique claws, the tail acts as a third leg, or “kickstand,” to keep the bird anchored.
1/10/2017, · To measure the pecking impulse and the initial impact velocity of a ,woodpecker's, head, the Great-spotted ,woodpecker, (Dendrocopos major) was selected in this study, who is endemic in Europe and northern Asia.It is 23–26 cm long with 38–44 cm wingspan and its weight is 70–98 g , .In the experiment, the bird was caged in a long and narrow glass aquarium.
A pioneering study by researchers of The Hong Kong Polytechnic University (PolyU) and the Beihang University in Beijing has unravelled the mystery of why ,woodpeckers, don't hurt themselves in the act of pecking on the trees. This finding is expected to provide fresh insights on the safety design of ,helmets, and other related products.
Woodpeckers, have feathers on their nostrils that prevent them from gasping or gulping wood particles while pecking. The old holes then become shelter for other birds, such as bluebirds, owls, wrens, and so on. ,Woodpeckers, are capable of pec't feel any sort of pain or headaches during and after pecking.