Method for determination of schisandra chinensis var.

【Properties】 This product is a round, elliptical or irregular oblique section with a diameter of 1.8~6.5cm. The surface is grayish brown, the cork peel is dark reddish purple, the cork is thicker, the thicker has most cracks, and is cracked. The thin one has a longitudinal groove, often ......

Indoor door purchase knowledge points

(1) Generally speaking, the price of a door refers to the price of a door with a cover, but does not include hardware, and the merchants who mold the door often claim to include hardware, not because they are generous, but because the molded door cannot be on site. To slot, the hardware must be ......