security metal door

Product Overview The Heavy-Duty Black Steel Entry Door by YSM is engineered from the ground up for maximum security and all-weather durability. Each door features a 1.5mm–2.0mm thick galvanized steel panel with reinforced internal stiffeners, creating an exceptionally rigid structure that resists prying, impact, and forced entry. The moisture-proof matte black finish is independently tested to withstand 1,000+ hours of salt spray (ASTM B117), ensuring outstanding anti

Product Overview Addressing the specification challenge of variable door preparations across multi-unit residential and commercial projects, this Adjustable Hole Spacing Interior Door Handle supports four standard center-to-center measurements — 128mm, 160mm, 192mm, and 256mm — within a single lever lock platform. This design flexibility dramatically simplifies procurement and inventory management for contractors and hardware distributors who serve diverse building stocks.