沖(chong)孔(kong)封頭(tou)：由(you)一(yi)個(ge)或多個(ge)孔(kong)沖(chong)壓(ya)成形(xing)(xing)的封頭(tou)。沖(chong)孔(kong)封頭(tou)也(ye)有橢圓形(xing)(xing)沖(chong)孔(kong)封頭(tou)、平底沖(chong)孔(kong)封頭(tou)、蝶形(xing)(xing)沖(chong)孔(kong)封頭(tou)、無直邊(bian)沖(chong)孔(kong)封頭(tou)等！

一般(ban)沖孔(kong)封頭(tou)多用于各種設(she)備過濾(lv)使用。而孔(kong)的大(da)小，距離均可按要求來定做(zuo)。