Retainer ring, holder and wedge section are made from GFRPP with high strength, anti-corrosion, impact resistance, size stability etc.

• 曝气器的压盖、支座、楔型卡座采用玻璃纤维增强聚丙烯注塑成型,强度高、耐腐蚀、抗冲击、结构尺寸稳定。