Chemical fiber industry is the main instrument gas and absorb gun, printing and dyeing main gas wire is power and gas meter.
化纤行业主要是仪表气和吸丝枪用气，印染主要是动力和仪表用气。
Chemical fiber industry is the main instrument gas and absorb gun, printing and dyeing main gas wire is power and gas meter.
化纤行业主要是仪表气和吸丝枪用气，印染主要是动力和仪表用气。
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