Recent Entries

• CHENMA zjchenma Emphasis on Surface Treatment Quality

  by zjchenma zjchenma Oct 18

  Residential entry barriers that combine security features with outdoor exposure must withstand repeated contact with moisture, airborne salts, ultraviolet radiation, and wide temperature ranges without compromising either locking function or surface appearance. Corrosion that begins at unprotected e...
• How Long Can a CHENMA Kitchen And Bathroom Steel Door Last

  by zjchenma zjchenma Oct 11

  How Long Can a Kitchen And Bathroom Steel Door Last? A door used in a kitchen or bathroom faces conditions that differ from those found in a typical living room or bedroom. Steam, splashes, cleaning products, frequent opening, and changing indoor temperatures can gradually affect its surface and ha...