国产精品无码av在线播放_成年免费a级毛片_无码少妇一区二区_97性无码区免费

沖(chong)孔網(wang)(wang)的常(chang)用標準有(you)兩(liang)種(zhong)(zhong)，一種(zhong)(zhong)是張(zhang)板(ban)沖(chong)孔網(wang)(wang)，一種(zhong)(zhong)是卷板(ban)沖(chong)孔網(wang)(wang)。一、 張(zhang)板(ban)沖(chong)孔網(wang)(wang)通常(chang)以鍍鋅(xin)鋼板(ban)、不(bu)銹鋼板(ban)、銅板(ban)、鋁(lv)板(ban)、鎳板(ban)及合金板(ban)為質(zhi)料,經(jing)沖(chong)床(chuang)經(jing)過模具沖(chong)壓而成。產(chan)品具有(you)漂亮、整(zheng)體性強、網(wang)(wang)孔均勻、網(wang)(wang)面平整(zheng)光(guang)滑、堅固耐用、亦于加(jia)工、成本(ben)低廉等特點。它(ta)的可沖(chong)厚度是0.5mm - 20mm，可加(jia)工的最大尺度是1.5*3m，1mm- 200mm。

二、卷(juan)板(ban)沖(chong)孔(kong)網的(de)材(cai)質通(tong)常是(shi)鐵板(ban)（即(ji)冷板(ban)）和鍍鋅(xin)板(ban)（原鍍板(ban)）經沖(chong)床經過模具沖(chong)壓而成。卷(juan)板(ban)沖(chong)孔(kong)網具有有用(yong)、漂亮(liang)、靈(ling)活性(xing)強。可(ke)根(gen)據(ju)運用(yong)用(yong)處隨意(yi)裁剪。卷(juan)板(ban)沖(chong)孔(kong)網的(de)標準 ：可(ke)沖(chong)厚0.2mm - 0.8mm，長1m*20m（長度可(ke)隨意(yi)定做），孔(kong)徑0.8mm - 10mm.

沖(chong)孔(kong)(kong)(kong)(kong)網的(de)常用孔(kong)(kong)(kong)(kong)徑(jing)：3孔(kong)(kong)(kong)(kong)2距(ju)(ju)、5孔(kong)(kong)(kong)(kong)3距(ju)(ju)、3孔(kong)(kong)(kong)(kong)3距(ju)(ju)、2孔(kong)(kong)(kong)(kong)3距(ju)(ju)、5孔(kong)(kong)(kong)(kong)2距(ju)(ju)、5孔(kong)(kong)(kong)(kong)3距(ju)(ju)、5孔(kong)(kong)(kong)(kong)5距(ju)(ju)、5孔(kong)(kong)(kong)(kong)3距(ju)(ju)、10孔(kong)(kong)(kong)(kong)3距(ju)(ju)、10孔(kong)(kong)(kong)(kong)5距(ju)(ju)等標(biao)準(zhun)。注意：孔(kong)(kong)(kong)(kong)徑(jing)大于孔(kong)(kong)(kong)(kong)距(ju)(ju)的(de)情(qing)況(kuang)下，孔(kong)(kong)(kong)(kong)距(ju)(ju)即是(shi)孔(kong)(kong)(kong)(kong)邊距(ju)(ju)，孔(kong)(kong)(kong)(kong)基地距(ju)(ju)等于孔(kong)(kong)(kong)(kong)邊距(ju)(ju)+孔(kong)(kong)(kong)(kong)徑(jing)。