Grass green technology and foreign professional production purification packing enterprise cooperation, the beginning of a green grass technology GH-GEL silica GEL packing listed. Including grass green technology and Asia A professional production of purification packing enterprise cooperation, introduced A SIL-A series of silica gel packing; In order to better satisfy the customer requirements, then grass green technology and North America a professional production of silica gel packing enterprise cooperation, launched another kind of SIL-B series of silica gel packing.