How to identify authentic agricultural machinery parts

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The authenticity of agricultural machinery parts can be identified by referring to the following methods: 1. Look at the gray surface of the cutting surface: gray, very dark luster, rough surface; ductile iron: gray, shiny gray iron, rough surface like gray Iron:Steel: Brighter luster (but slightly darker cast steel), fine texture, grinding or reaming surface as a mirror, delicate and smooth hand feel, chrome steel grinding surface common small bright spots; iron Base powder metallurgy: silver gray, fine structure, and its luster is between steel and iron. 2. The boring test boring test should be conducted after the purchase is confirmed and the supplier agrees to accept the responsibility. Gray iron: boring cutting resistance is relatively small, when the boring, issued a "click" sound, very little sticky, swarf is grayish black, there are a small amount of silver and white highlights, look at the particle size is different, mainly small particles, Grinding with your fingers makes it easy to stain your fingers. Ductile iron: When boring, the resistance is slightly larger than that of grey iron. There are also obvious “clicks”, very little stickiness, crumbs are grayish black, and there are fine highlights. , Particles of different sizes, but mainly large particles, with the fingers grinding at the end, the fingers can be dyed black, but lighter than the gray iron dyeing degree; white iron: boring made a loud "grilling" sound, No crumbs at the end, only the light at the quilt, no scars, scratches on the guillotine surface; steel: Most of the steel parts are cold or heat treated, the surface is hard, and when they are on the pimple, they also whisper. The sound is much lighter when the white iron is boring, and the surface is bright. After the boring, the scar surface is left with obvious scars. Copper: The most obvious feature of boring is that the boring tool is easy to skid, and the swarf is easy to stick. The surface of the bedding is bright copper yellow or copper red; aluminum: it is very easy to cut, more crumbs and faster, gray or white White, sticky and difficult to brush off heavy file; iron-based powder metallurgy: filing less resistance, feel and low carbon steels, like the sound of gray iron, non-stick file, dust like particles of ductile iron end, and encroach blackish color. 3, listen to the sound of knocking the accessories hanging up, hit with a hammer or other metal objects, the percussion force is not too large, and close to the ear with the test piece to listen to, and their sound is different. Gray iron: The voice is low and the duration is very short. Ductile iron: The voice is crisp, with reverberation, and the duration is short. Steel: The voice is clear and the remaining sounds are like thin bells and have a longer duration.

We are manufaturer for kinds of Fruit. We have orange, apricot,etc. Healthy food.

Fruit

Fresh Apricot,Organic Navel Oranges,Mandarin Orange,Sweet Citrus

Chengdu Minghe Agriculture Co.,Ltd , http://www.cdmhny.com