按JB/T7977-99標準製造,材質為HT200-250,cizhongcaizhidezhutiepingxingpingchizaigongyeshengchanzhongdedaoguangfanyingyong。gongzuomiancaiyongguayanhuojingmimoxuegongyi,yongyujichuangjianyanzhongjianyanbupingduhebuzhidulianggegongzuomianshipeihekuaigui,qianfenchi,shuipingyidengyiqijianyan,butonggaodu,liangdaoguidepingxinghebulianjiedaoguideshuiping,bingkeyipeihezhijiaochi,jianyanzhiyongzhijiaochiwufajianyandeliangjijiandechuizhidudeliangju,haishiyongyushebeianzhuanghejianzha,shiyongwendu(20±5)℃