1. Do not touch with a hard object hit. After Jade easily broken by the collision, although sometimes the naked eye can not see ??? crack, but the molecular structure of the surface inside the jade has been damaged, resulting in a dark crack, Over time it will be revealed, a great disservice to its perfection and collectible value. Jade jade wholesale wholesale gift processing 2, as far as possible from dust, oil. If Jade surface dust, use the soft brush to clean; if dirt or grease, etc. attached to Yumian available light warm soapy scrub, then rinse. Avoid the use of chemical degreaser. For the serious pollution to the old jade can produce clean jade professional company with a professional ultrasonic cleaning and maintenance. 3, jade pendant worn properly when not to put the best into jewelry pouch or jewelry box, so as not to bruise. Henan Jade 4, avoid contact with perfume, chemicals, soap or human sweat. Because jade contact sweat too much later, that would be eroded, the outer layer is damaged, affecting the original vividness. Especially the white - use soft cloth to wipe the sweat suet more bogey and grease, after wearing. 5. Do not set the long-term direct sunlight. Jade sun exposure in case of thermal expansion, molecular volume increases will affect jade, and therefore more bogey near heat sources. Nanyang jade wholesale 6, overly dry environment tends to evaporate the water, to the detriment of the quality of jade. Contact: Yujing Li Tel: 4006156603 Website: http: //www.yucunyuye.com Address: Nanyang City Tianguan Li River Logistics Park Avenue in the middle