砂型鑄造工藝的改進, 鑄造處理和結構規避是改善LED點光源壓鑄件的密封和防水性能的措施. 1. Sand casting process improvement of LED point light source die casting There are several ways to improve sand casting process (1) Keep pressure and heat preservation for […]
15
十二月
十二月
標記檔案: ip67 led lighting