With the vigorous development of the downstream industry and the improvement of the connector industry itself, the connector has become an indispensable signal and electrical "bridge" in electronic equipment, and the overall market size has maintaine
Is there only one way for RF devices to innovate in materials? of course not. Putting aside professional issues for the time being, this point of view is worth questioning and discussing whenever anything is considered to be the only way to go. So, a
The fluorescent dissolved oxygen meter has a layer of fluorescent material, the blue light emitted by the LED light source irradiates the fluorescent material, the fluorescent material is excited, and emits red light; a photocell detects the time req
The stop valve, also known as the cut-off valve, is a forced-sealing valve, which is a kind of cut-off valve. According to the connection mode, it is divided into three types: flange connection, threaded connection, and welding connection.
The stop valve, also known as the cut-off valve, is a forced-sealing valve, which is a kind of cut-off valve. According to the connection mode, it is divided into three types: flange connection, threaded connection, and welding connection.
Since 2005, the Concrete Admixtures Branch of the China Building Materials Federation has paid close attention to the demand for admixtures in the railway sector, and has closely contacted the China Railway Inspection and Certification Center to guid