Specifications ● Manhole main part steel 1.4301 / 1.4404 ● Manhole cover steel 1.4301 / 1.4404 ● Gasket made of silicone ● Plastic handle ● Opening type ● Matte treatment on both inner and outer ● Rectangle Dimension(mm): 225×175 ● Welded with full welding technology Alternatives ● Optional 304, 316, 316 L Steel ● Polishing degree selection 0.4μm-0.8μm ● Treatment could also be mirror polishing or sandblast ● Height can be customized ● Collar thickness can be customized as requested ● Gasket material can be an alternative EPDM , FPM PRODUCT PARAMETERS Standard size /* At temperature 50℃/122℉ Please refer to the specifications on the right *1BAR ≈14.5PSI≈0.1Mpa 
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