จะบอกผลการเก็บเสียงของหน้าต่างประตูอลูมิเนียมได้อย่างไร?
17 Sep, 2020Noise do harm to person’s body, so it needs to consider that soundproofing effect of aluminum door window when choosing a window. Today JMD share the judgment methods.1. GlassThe selection of hollow laminated glass Windows can meet the needs of high sound insulation. Laminated glass can reduce noise at all frequencies, while insulating glass has a good noise reduction effect for high-frequency noise and all kinds of traffic noise (such as truck passing noise, overhead noise, etc.).The co......
เครื่องย้ำเข้ามุมไฮดรอลิกสำหรับงานหนัก (LJZJZ-150)
15 Sep, 2020Corner crimping machine is one of crucial machines for making windows. This type has many advantages as follows which may be suitable for you.1. The max driving force is 7 -8 tons which can crimp thicker and heavier profiles easily.2. The positioning body、blade seat and base plate are made by ductile casting iron which have high abrasion resistance and good rigidity.3. The positioning head of the crimping blade adapts wire cutting,the blade seat are equipped by the scale which is convenient......