①确认认为路牙石型机的表面结构是观察的。一般石材均匀精巧结构，质地巧秒，石材成路牙石成型机； 不等晶石的外观较差，机械性能参差不齐，质量较差。也由于自然石的地质过程的影响，经常产生一些细脉和微裂隙，结石容易沿这些部位断裂，应注意。至于缺乏弯道， 它不是很吸引人，关键是当选择注意。
① it is confirmed that the surface structure of the machine is observed. In general, the stone is of uniform and exquisite structure, and the texture is exquisite. The stone is a road stone forming machine. The appearance of unequal crystal stone is poor, the mechanical properties are uneven, and the quality is poor. Due to the influence of geological process of natural stone, some veinlets and microcracks are often produced, and the stone is easy to break along these parts, which should be noted. As for the lack of curve, it is not very attractive. The key is to pay attention when choosing.
②量，即 “量”路牙石大小。为了以免拼接或拼接后的图案、图案、线条变形，影响装饰成效。
② measure, i.e. "measure" the size of curbstone. In order to avoid the pattern, pattern and line deformation after splicing or splicing, affecting the decoration effect.
③听，即 “听”路牙石造型机石敲声。一般质量较好，里部密度均匀，无微裂缝的石材，敲在门的声音清脆宜人。反之, 如果路牙石里部微裂纹或细微纹，或与颗粒松散接触，由于风化、开裂。
③ listen, that is to say, "listen" to the sound of the stone knocking of the curbstone molding machine. Generally, the stone with good quality, uniform density in the interior, no micro cracks, and the sound of knocking on the door is crisp and pleasant. On the contrary, if there are microcracks or fine lines in the interior of the curbstone, or they are in loose contact with the particles, due to weathering and cracking.
④测试，这是一个简单的测试方法来“测试”路牙石成型机的石材质量。通常在背面的石头上滴几滴墨水，如墨水快，它表明路牙石成型机存在石颗粒疏松或微裂缝产生，石材质量不好。相反，石头的密度，质地较好。
④ test, this is a simple test method to "test" the stone quality of the road rock forming machine. Usually drop a few drops of ink on the stone on the back, such as fast ink, which indicates that the stone particles are loose or microcracks are produced in the curbstone molding machine, and the stone quality is not good. On the contrary, the density and texture of stone are better.