A: The flower spikes are rectified 1 week before flowering, the large spikes remove 1 to 8 spurs of the aphid and the base of the spindle, and the small spikes are less or not; the apex of the stalk is about 1/4, and the fruit is scattered after 2 weeks. Grain, start immediately after stabilizing the fruit, and finish before the rainy season. When bagging, be careful to leave a paper bag of 1.0 to 1.5 cm above the sealing wire, and never use the hand to pick the ear.
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Rhodium powder Rh≥99.95% Properties: silver-white metal, extremely hard, wear-resistant, also has considerable ductility Application: It can be used as raw material for electrical instrumentation, chemical industry and manufacture of precision alloys. Rhodium powder is based on the widespread use of ruthenium in the industrial industry. Since rhodium is a rare metal required by the industry, the industry price is slightly higher than that of general non-ferrous metals. Rhodium, one of the rare elements, has various uses. Rhodium can be used to make hydrogenation catalysts, thermocouples, platinum-rhodium alloys, etc. It is also often plated on searchlights and reflectors, and is also used as a polishing agent for gemstones. and electrical contact parts.
precious metal
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