How to choose a sliding door hardware

Today, sliding doors have been increasingly used in everyday life. High-quality hardware is the “life” of sliding doors, but poor quality products can bring undue shortcomings to consumers. High-quality sliding door hardware is mainly reflected in the design and manufacturing level of

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What are the structure of laminate flooring?

(a) Surface wear layer The biggest characteristic: wear resistance, durable Wear factor: Al2O3 or SIC is evenly and finely attached to the surface of the decorative layer. u To measure the good or bad wear resistance: It depends on the content of AL2O3 and SIC in the wear layer. The more the co

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Research progress on microbial feed additives

The microorganisms currently used for microbial feed additives mainly include: lactic acid bacteria, Bacillus, yeast, actinomycetes, photosynthetic bacteria, etc. The US FDA (1989) stipulates that there are more than 40 kinds of microorganisms allowed to be fed, 30 of which are It is a lactic acid

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Effect of dietary tryptophan levels on laying hen production

Abstract : This experiment investigated the effects of tryptophan on the production performance and protein metabolism of the late-stage egg production of Roman hens. The experiment was designed by single factor experiment. 576 chickens with the same body weight at 300 days of age were randomly div

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Insulation ball valve advantages and applicable

Insulated ball valve in the pipeline is mainly used to cut off, distribution and change the flow direction of the medium. Ball valve is widely used in recent years, a new type of valve, which has the following advantages: 1. Fluid resistance is small, the resistance coefficient and the same length o

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Tool problems to be considered during machining

Every shop must make a decision: whether it is a homemade tool or a purchased tool. Another similar decision is whether you should re-grind your own tools or spend money on professional companies to provide regrind services. Another issue to consider is the tool coating: which coating should be use

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