weishan-xie


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industrial grade welded air duct: stainless steel 316l/galvanized sheet spcc/carbon steel q235b (compliant with gb50243 standard) intelligent spiral duct system: dn100-dn2000 full specification coverage (eu ce certification) special composite air duct: explosion-proof/acid alkali resistant/soundproof (certified by fm)
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Member Since: 29-Apr-2025

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