A.每批不大于50kg B.每批不大于40kg C.每批不大于30kg D.每批不大于20kg
A.黏度,苯等五項 B.黏度,苯等四項 C.黏度,苯等三項 D.黏度,苯等六項
A.≥100% B.≥80% C.≥75% D.≥98%