'Sterling silver' and '925 silver' are interchangeable terms for the same metal alloy. A stamp reading '925' is a hallmark you’ll often find on sterling silver jewellery, confirming it contains 92.5% fine silver, which is where the '925 silver' name comes from. This fine silver and copp...
aThe die inserts,the cores and the cavities,which have to withstand the impact and high temperature of the molten materialm are made of alloy steel given a nitride or other treatment to resist wear and heat. 模子插入物、核心和洞,必须承受溶解的materialm的冲击和高温度由指定的合金钢制成氮化物...
Driveshafts typically have a composition of strong materials, such as steel or aluminium alloy, making them sturdy and capable of withstanding high torque and rotational forces. They can handle the demands of heavy-duty applications and provide long-lasting performance. Driveshafts are relatively str...
Also like the Oyster Perpetual, the Datejust comes in many different sizes, case materials and so on. This example is made from Oystersteel (what Rolex calls their proprietary stainless steel alloy), is mounted on a Jubilee bracelet (one of a few signature Rolex bracelet designs) and features...
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