Current label: Tangshan rectangular tube manufacturer
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Manufacturing process requirements: ① The rectangular straight pipe must be discontinued on the special import assembly line to ensure the manufacturing accuracy and airtightness of the air pipe. ② The blanking of rectangular air duct fittings shall be completed automatically by using computer software on the imported special machine, and the automatic plasma cutting process shall be completed on the imported special plasma cutting machine for sheet metal. ③ The seam connection of rectangular air duct shall adopt