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(xiàng) B.黏度,苯等四項(xiàng) C.黏度,苯等三項(xiàng) D.黏度,苯等六項(xiàng)
A.≥100% B.≥80% C.≥75% D.≥98%