Stainless Steel Testing Reagent for Liquid Manganese Detection 304 Model 12ml*1
Capacity: 12ml. 2 00 (ordina ry 201 ): red within 5 seconds, and red within 30 seconds is 200,200 materials are also good or bad; manganese exceeds the standard. 201 (Authentic 201): turns red in about 50 seconds; manganese exceeds the standard.