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chongqing langya building materials co., ltd. is a production enterprise specializing in scientific research, design, production, sales and service. the company's main products are: wooden fire doors, steel fire doors, sliding doors, iron guardrails, rolling shutters, stainless steel doors and windows, as well as stainless steel engineering and iron engineering. welcome to call for ordering.
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heat:fast technology reported on december 26 that 2024 ideal will be held tonight