The Chinese hardware and tools industry has seen some growth in recent years, but it still lags significantly behind the more advanced machine tool sector. Most high-performance cutting tools used in production are imported from abroad, including those manufactured by foreign-owned companies operat ...read more...
Calcium sulfate, commonly known as gypsum, is a mineral with two main forms: dihydrate (CaSO₄·2H₂O) and anhydrous (CaSO₄). In traditional industries, it has been widely used in construction, where raw gypsum is calcined into semi-hydrated or anhydrous forms and mixed with wat ...read more...
Jc001.load('iframe'); JIFrame.create({ 'url' : '/go.php?action=ads&iframeHeight=250&isIframe=1&key=%CD%BF%C1%CF&pos_id=jc001_news_detail_30&reqkey=1&style=margin%3A15px+15px+25px+0%3B+height%3A255px%3Bwidth%3A255px%3B+float%3Aleft%3B', 'height' : 250 }) 1. Cracks, water se ...read more...
Calcium sulfate, commonly known as gypsum, is a mineral with two forms: dihydrate (CaSO₄·2H₂O) and anhydrous (CaSO₄). Traditionally, it has been widely used in the construction industry, where raw gypsum is calcined into either semi-hydrated or anhydrous forms. When mixed wit ...read more...
Jc001.load('iframe') JIFrame.create({ 'url' : '/go.php?action=ads&iframeHeight=250&isIframe=1&key=%CD%BF%C1%CF&pos_id=jc001_news_detail_30&reqkey=1&style=margin%3A15px+15px+25px+0%3B+height%3A255px%3Bwidth%3A255px%3B+float%3Aleft%3B', 'height' : 250 }) 1. Cracks, water seepage, and leaks on the ex ...read more...
Who Invented the Bearing? Home > Bearing Knowledge > Who Created the Bearing var cpro_id = "u3440131"; Who Invented the Bearing? Source: Bearing Network | Time: 2013-02-17 var cpro_id = 'u3171089'; The concept of linear motion bearings dates back to ancient ...read more...
**Who Invented the Bearing?** Home > Bearing Knowledge > Who Created the Bearing The history of bearings dates back to ancient times, with early forms of linear motion bearings using wooden poles placed beneath a sled or platform. This method may have been used during the construction of the G ...read more...