... of eyepiece biological microscope for lab\ school XSP-15, made in china Specification:XSP-12 type 50 x-500 x were ... six, XSP-15 type 50 x-640 x altogether six; XSP-13 A, 16 type A ... biology, bacteriology research, clinical trials and the teaching demonstration; Magnification XSP-13 type A 50 x-1250 x A total of ... nine kinds, XSP-16 type 50 x-1600 x A total of nine ...