hi-gradeBNC²³⁶²¹³⁺¹ 基本例句 🌏雪印 The PS light passing cover is made of imported hi-grade poly- resin plate, anti- static and anti- ultraviolet, good light passing, unchangeable in light color for long application. PS灯罩为进口高级多元树指，经抗静电、紫外线处理，不易沾尘，透光性能良好，长期不变色。 goodsres