正规厂家是根据航空公司、军事飞机制作厂所提供的图纸生产模型，因此作出的模型比例更加真实，逼真。
Regular manufacturers produce models based on drawings provided by airlines and military aircraft manufacturers, making the proportions of the models more realistic and realistic.
而非正规厂家生产的模型产品未经航空公司、军事飞机制作厂授权，往往是通过仿造正规厂家产品，或在网上搜集一些军事飞机图片生产而成，做出来的模型往往会比例失调，看起来不那么真实。
The model products produced by informal manufacturers without authorization from airlines or military aircraft manufacturers are often produced by imitating the products of legitimate manufacturers or collecting some military aircraft images online. The resulting models often have out of proportion and may not appear as realistic.
1、外表很容易变黄、褪色
1. The appearance is prone to yellowing and fading
一个正规的定制军事飞机模型生产厂家，在模型生产中都会选用价钱较贵的涂料，因而生产出来的飞模型即使长时间存放也不容易出现变黄、退色等景象褪色等现象。而小型军事飞机模型厂家生产出来的模型刚开始与大厂家生产出来看起来差别不大，然而半年到一年左右就会逐步变黄、褪色，因此就会有一些厂家把价钱压得更低就有这方面的原因。
A regular manufacturer of customized military Model aircraft will use expensive advanced coatings in model production, so the produced aircraft model is not prone to yellowing, fading and other phenomena even if it is stored for a long time. However, the models produced by small military Model aircraft manufacturers seem to be similar to those produced by large manufacturers at the beginning. However, they will gradually turn yellow and fade from half a year to about a year, which is why some manufacturers will lower their prices.
2、机翼、发起机等部件容易断裂、脱离
2. Components such as wings and initiators are prone to breakage and detachment
一些小的模型生产厂家以及非正规的生产企业受到生产工艺的限制，以及为了节约成本，选用较差的生产材料，更终生产出来模型的机翼、发起机等部件在运输途中十分容易断裂、脱离，特别是量少的情况下，快递运输中这种损失率有时甚于高达70%以上。
Some small model manufacturers and informal production enterprises are limited by production processes and choose poor production materials to save costs. The wings, initiators, and other components of the final model are easily broken and detached during transportation, especially in small quantities. This loss rate can sometimes even reach over 70% in express transportation.
3、外表不光滑、杂质较多
3. The appearance is not smooth and there are many impurities
正规厂家做得好的军事飞机模型都是采用树脂类生产，很多工序必须要通过手工完成，而一些小厂家一味的为了节省成本，降低，寻求产量，缺少必要的质检工序，成品模型做成以后，或多或少都会有一些存在瑕疵的产品，这十分影响产品的品质。对于模型经销商来说，尽管进货价钱可能相对较低，然而这样高的瑕疵率不仅不能把销售价钱降低，也使得模型销售商处于一种恶性循环当中。
The military Model aircraft well made by regular manufacturers are all made of resins, and many processes must be completed manually. However, some small manufacturers are blindly trying to save costs, reduce prices, and seek output. They lack the necessary quality inspection processes. After the finished models are made, there will be more or less defective products, which will greatly affect the quality of the products. For model dealers, although the purchase price may be relatively low, such a high defect rate not only cannot lower the sales price, but also puts model sellers in a vicious cycle.
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