列管式自动反冲洗过滤器
automatic back-flush tube filter
全自动反冲洗过滤器
entire automatic instead of wash filter
洗衣机洗涤法
wash in washing machine method
自动反冲洗过滤器
Automatic reverse-washing filter
automatic backwash filter
自动清洗过滤器
automatic cleaning strainer
auto-clean strainer
automatic self-cleaning strainers
过滤机滤板
filtration board of filter