The advantages and disadvantages of the cut-off valve

The advantages and disadvantages of the cut-off valve The cut-off valve is the valve that moves the closing member (valve) along the centerline of the valve seat. The cut-off valve, also known as the cut-off valve, is a forced-to-close valve, so when the valve is closed, pressure must be a

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HJ-BS3D intelligent element analyzer

1. Main technical parameters: ◇Analytical method: photoelectric colorimetric analysis ◇ Range: Absorbance value 0~1.999A Concentration value 0~99.99% ◇Measurement accuracy: in line with GB223.3~5-88 standard ◇Power supply voltage: 220V±10% 50Hz 2. Main

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U.S. bans imports of seafood that has not passed HACCP

Recently, the US Food and Drug Administration (FDA) analyzed the HACCP analysis and concluded that a GroPoint fishery company operating in Labuan, Malaysia, is not in compliance with the US Food and Drug Administration system documentation. According to the understanding of the company'

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