檢(jian)(jian)驗(yan)彎(wan)板(ban)用(yong)(yong)(yong)途：主(zhu)要用(yong)(yong)(yong)于高度(du)(du)機械和儀器檢(jian)(jian)驗(yan)和機床之間不垂(chui)(chui)直(zhi)度(du)(du)的(de)檢(jian)(jian)查. 檢(jian)(jian)驗(yan)工(gong)件(jian)的(de)90°角，維(wei)修設(she)備時檢(jian)(jian)驗(yan)零部件(jian)相(xiang)關表(biao)面的(de)相(xiang)互垂(chui)(chui)直(zhi)度(du)(du)，還經常用(yong)(yong)(yong)于鉗(qian)工(gong)劃線。檢(jian)(jian)驗(yan)彎(wan)板(ban)材質(zhi)：高強(qiang)度(du)(du)鑄鐵(tie)HT200-300工(gong)作面硬度(du)(du)為HB170-240，經過(guo)兩(liang)次人工(gong)處(chu)理（人工(gong)退火600度(du)(du)-700度(du)(du)和自然(ran)時效2-3年）使(shi)用(yong)(yong)(yong)該(gai)產品(pin) 的(de)度(du)(du)穩定，耐磨性能好。檢(jian)(jian)驗(yan)彎(wan)板(ban)一般(ban)(ban)度(du)(du)：可以(yi)分為000級(ji)、00級(ji)、0級(ji)、1級(ji)、2級(ji)、3級(ji)。選用(yong)(yong)(yong)度(du)(du)標準時一般(ban)(ban)根據使(shi)用(yong)(yong)(yong)情況酌情而定。3級(ji)度(du)(du)以(yi)上(shang)的(de)彎(wan)板(ban)用(yong)(yong)(yong)做檢(jian)(jian)驗(yan)、劃線、裝配等(deng)使(shi)用(yong)(yong)(yong)，4級(ji)度(du)(du)以(yi)下的(de)彎(wan)板(ban)一般(ban)(ban)用(yong)(yong)(yong)做鉚焊等(deng)使(shi)用(yong)(yong)(yong)