Brass alloy, Cu63Zn37

Brass alloy, Cu70Zn30

Brass alloy, Cu70Zn30

Brass alloy, Cu70Zn30

Bright-Line^TM Hemacytometer

Bright-Line^TM 血细胞计数器

Briskheat heating tape, silicone rubber, grounded

BriskHeat^® HM table top heating mantle

BROMOTRIPHENYLLEAD

BUT-2-ENEDIOIC ACID DIHEXYL ESTER

BUTYL 2-(PARA-TOLYLSULFONYL)-ACETATE

BUTYL 4-(3-(2,4-DICHLOROBENZOYL)-2-THIOUREIDO)BENZOATE

BUTYL 4-(TERT-PENTYL)-PHENYL ETHER

BUTYL CARBANILATE

BUTYL N-(1-HYDROXY-2,2,2-TRICHLOROETHYL)CARBAMATE

BUTYL N-(3-NITROPHENYL)CARBAMATE