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一、塑料管(guan)(guan)(guan)(guan)帽用(yong)(yong)途特點(dian) 又叫(jiao)法(fa)蘭(lan)護(hu)蓋，鋼(gang)管(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)帽，鋼(gang)管(guan)(guan)(guan)(guan)堵(du)頭(tou)，封頭(tou)是采用(yong)(yong)塑料為(wei)主要(yao)(yao)原(yuan)料加工(gong)而成(cheng)管(guan)(guan)(guan)(guan)帽，塑料的發展方向(xiang)可概括(kuo)(kuo)為(wei)兩方面。管(guan)(guan)(guan)(guan)帽包(bao)括(kuo)(kuo)凸(tu)形(xing)(xing)(xing)(xing)管(guan)(guan)(guan)(guan)帽、錐殼、變徑段(duan)、平蓋及緊(jin)縮口的設計。凸(tu)形(xing)(xing)(xing)(xing)管(guan)(guan)(guan)(guan)帽包(bao)括(kuo)(kuo)：半(ban)球形(xing)(xing)(xing)(xing)管(guan)(guan)(guan)(guan)帽、橢(tuo)圓形(xing)(xing)(xing)(xing)管(guan)(guan)(guan)(guan)帽、碟(die)形(xing)(xing)(xing)(xing)管(guan)(guan)(guan)(guan)帽和(he)球冠形(xing)(xing)(xing)(xing)管(guan)(guan)(guan)(guan)帽。主要(yao)(yao)用(yong)(yong)戶于法(fa)蘭(lan)，鋼(gang)管(guan)(guan)(guan)(guan)，彎(wan)頭(tou)，異徑管(guan)(guan)(guan)(guan)等做保(bao)護(hu)。給鋼(gang)管(guan)(guan)(guan)(guan)，法(fa)蘭(lan)，管(guan)(guan)(guan)(guan)件廠添(tian)磚加瓦(wa)。

20塑(su)料管帽是外帽系列(lie)中的(de)一(yi)種，外帽有13.7 17.1 26.7 33.4 42 48 50 51 60 73 76 89 114 141 159 168 219 273 325 355 406 這些型號

塑料管(guan)帽用鋼管(guan)上邊起到防塵、防腐的作(zuo)用

377塑料(liao)管帽(mao)屬于塑料(liao)管帽(mao)內塞系列，在原來的基礎上我們(men)進行了改動(dong)，從而加大(da)了使用(yong)效果還降(jiang)低(di)成本

159塑料(liao)管(guan)帽(mao)，有塑料(liao)顆粒加工而成，它起到了(le)保護鋼管(guan)坡口的(de)效果，同時防(fang)塵防(fang)腐。