A.網(wǎng)面長(zhǎng)、寬及網(wǎng)面長(zhǎng)短差B.鋼絲直徑C.絲梗厚度、寬度及短節(jié)矩D.網(wǎng)面長(zhǎng)、寬及網(wǎng)格尺寸
A.網(wǎng)面長(zhǎng)、寬及網(wǎng)面長(zhǎng)短差B.鋼絲直徑及網(wǎng)面平整度C.絲梗厚度、寬度及短節(jié)矩D.網(wǎng)面長(zhǎng)、寬及網(wǎng)格尺寸
A.20NB.24NC.25ND.28N