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(1)看规格型号是否合适。大多数农机零配件都有规定的型号和技术参数。如选购电器设备,应注意检查与被换零件的电压、功率是否一致;选购传动带时,应注意型号和周长;选购轴承时,应注意轴承类别;选购针阀偶件时,应注意喷雾锥角和喷孔直径;选购活塞、活塞环时,应分清标准尺寸和加大尺寸。 (2)看商标标识是否齐全。正宗产品的外包装质量好,包装盒上字迹清晰,套印色彩鲜明。包装盒、袋上,应
(1) to see the specifications of the model is appropriate. Most farm machinery parts and components have the required model and technical parameters. Such as the purchase of electrical equipment, should pay attention to check with the parts being replaced voltage, power is the same; optional belt, you should pay attention to model and perimeter; When buying bearings, should pay attention to the bearing type; Should pay attention to spray cone angle and nozzle diameter; optional piston, piston ring, you should distinguish between the standard size and increase the size. (2) to see if the trademark logo is complete. Authentic product packaging quality, the box on the writing is clear, overprint colorful. The box, the bag, should be