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手(Shou) 机(Ji):(?)13801443897
邮(You) 箱(Xiang):(?)1203703352@qq.com
地(Di) 址(Zhi):(?)扬(Yang)州(Zhou)市(Shi)江(Jiang)都(Du)区(Qu)小(Xiao)纪(Ji)镇(Zhen)宗(Zong)村(Cun)凤(Feng)凰(Huang)西(Xi)路(Lu)24号(Hao)
风(Feng)管(Guan),(?)是(Shi)用(Yong)于(Yu)空(Kong)气(Qi)输(Shu)送(Song)和(He)分(Fen)布(Bu)的(De)管(Guan)道(Dao)系(Xi)统(Tong)。(?)
有(You)复(Fu)合(He)风(Feng)管(Guan)和(He)无(Wu)机(Ji)风(Feng)管(Guan)两(Liang)种(Zhong)。(?)风(Feng)管(Guan)可(Ke)按(An)截(Jie)面(Mian)形(Xing)状(Zhuang)和(He)材(Cai)质(Zhi)分(Fen)类(Lei)。(?)风(Feng)管(Guan)制(Zhi)作(Zuo)不(Bu)锈(Xiu)钢(Gang)风(Feng)管(Guan)制(Zhi)作(Zuo)是(Shi)在(Zai)咬(Yao)口(Kou)缝(Feng)、(?)铆(Mao)钉(Ding)缝(Feng)、(?)法(Fa)兰(Lan)翻(Fan)边(Bian)四(Si)角(Jiao)等(Deng)缝(Feng)隙(Xi)处(Chu)涂(Tu)上(Shang)密(Mi)封(Feng)胶(Jiao)((?)如(Ru)中(Zhong)性(Xing)玻(Bo)璃(Li)胶(Jiao))(?)。(?)涂(Tu)密(Mi)封(Feng)胶(Jiao)前(Qian)应(Ying)清(Qing)除(Chu)表(Biao)面(Mian)尘(Chen)土(Tu)和(He)油(You)污(Wu)。(?)按(An)截(Jie)面(Mian)形(Xing)状(Zhuang),(?)风(Feng)管(Guan)可(Ke)分(Fen)为(Wei)圆(Yuan)形(Xing)风(Feng)管(Guan),(?)矩(Ju)形(Xing)风(Feng)管(Guan),(?)扁(Bian)圆(Yuan)风(Feng)管(Guan)等(Deng)多(Duo)种(Zhong),(?)其(Qi)中(Zhong)圆(Yuan)形(Xing)风(Feng)管(Guan)阻(Zu)力(Li)最(Zui)小(Xiao)但(Dan)高(Gao)度(Du)尺(Chi)寸(Cun)最(Zui)大(Da),(?)制(Zhi)作(Zuo)复(Fu)杂(Za)。(?)所(Suo)以(Yi)应(Ying)用(Yong)以(Yi)矩(Ju)形(Xing)风(Feng)管(Guan)为(Wei)主(Zhu)。(?)按(An)材(Cai)质(Zhi),(?)风(Feng)管(Guan)可(Ke)分(Fen)为(Wei)金(Jin)属(Shu)风(Feng)管(Guan),(?)复(Fu)合(He)风(Feng)管(Guan),(?)高(Gao)分(Fen)子(Zi)风(Feng)管(Guan)。(?)
- 上(Shang)一(Yi)篇(Pian):(?)从(Cong)食(Shi)品(Pin)包(Bao)装(Zhuang)运(Yun)输(Shu)透(Tou)视(Shi)技(Ji)术(Shu)、(?)设(She)备(Bei)如(Ru)何(He)守(Shou)护(Hu)品(Pin)质(Zhi)安(An)全(Quan)
- 下(Xia)一(Yi)篇(Pian):(?)没(Mei)有(You)了(Liao);