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Corrosion Resistant Composite Manhole Step with Anti Slip Safety Design. High Load Bearing: Supports over 400kg weight without structural damage or loosening. Anti-Slip Safety: 12mm steel core wrapped in PP plastic for corrosion resistance and grip. Easy Installation: Smash directly into wall using expansion bolts; no screws needed. Customizable Design: Colors and designs can be customized according to customer requirements. Quality Certified: Meets EN 13101 and EN124 standards with SGS/TUV/BV testing support. Free Design Service: Free design services provided for new project development.