Our prestained protein ladders have good quality with two or three colors in sharp 11 protein bands from 10-250kd(10, 15, 20, 25, 35, 40, 50, 70, 100, 150, 250). We researched and developped the products by ourselves. The price is cheap with good quality. Product characters: (1)molecular weights are precise; (2)protein bands are stable, even store at 37ºC one month, the quality of bands are good. PS: there are only a few companies, as we know now, such as Thermo Fisher #26616/26617,26619/26620(Fermentas in Lithuania), BIO-RAD#161-0374(USA), may produce this product with good quality.

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