[Classify] 
 Children's sand according to different needs: sand, sand (natural sand), sand, white sand. 
 [Specifications] 
 The specification is divided into :20-40 mesh (0.5-1mm) 40-80 mesh (0.2-0.5mm or so) is not big, nor small. Particle uniformity, color and soft, not too rough, of course, can not have gravel, hazardous particles, too small and too much silt will harm your baby's skin can not be used. Avoid non-use of industrial sand and dust too much sand to play for the baby. 
 [Production process] 
 (1) Cleaning: rinse the weeds in the sand and soil. 
 To the complex: to rough, to remove any of the things that may cause harm to the sand and debris, and coarse sand, should be cleared. 
 Disinfection: thoroughly soaked with disinfectant and then rinse 
 (4) Drying: will wash a good sand placed in a clean drying oven drying. 
 Go to dust: The sand filter separated according to specifications used in the filtered exhaust fan to remove the dust completely. 
 Packaging: according to different specifications subcontracting, packaging for white laminated woven bags of 25kg packing with 50kg packaging according to customer requirements for packaging. 
 [Sand proportion and amount of calculation] 
 , Specific gravity: a square of about 1.5 tons 
 1 ton equals 0.6 square 
 Second, the calculation method 

 1 square meter and 10 square meters 15 square meters and 20 square meters Remarks 
 10 cm and 0.2 t 2 t 3 t 4 t customers can quantitatively according to their needs. 
 20 cm, 0.4 tons, 3 tons, 4.5 tons and 6 tons 
 25 cm, 0.5 tons, 5 tons, 7.5 tons and 10 tons 
 [Play] 
 Children grasping Shasa, hands buried in the sand play. 
 2 kegs, a small shovel, small bowl, vials and other containers of sand, pour sand play. 
 (3) sandbox toys to play with small animals, trees, flowers, small house. 
 4 molds, caps and other small snacks to play. 
 5 for adults and children to play with, such as hands buried in the sand shot real withdrawal of the hand, made a small cave (beat the Bird's Nest) play. 
 Parents prepare a small heap of sand, so that the children reach out to grab, experience the feelings of sand to go through our fingers flow; allow children freedom to play in the sand to sand, can guide the children barefoot walk on the sand. Jump, look at the sand surface of what is left? Grasping a grasping, Nie Yinie sand, try the dry sand to shape into balls? With a variety of toys to play with sand, buckle a buckle toy or mold sand, take a look can make any shape. Let the children play in the perception of the sand soft and loose, and other characteristics, the fun of playing with sand. Let the children write or draw in the sand the surface with your fingers. Printed on their footprints and handprints in the sand, imagine a single or a combination of fingerprints or footprints are like what? 
 Scoop sand, sand, sand and tools to simulate a variety of public or home activities. Sand with infinite plasticity, can stimulate the children continue to go higher degree of difficulty of the performance of stirring the imagination and creativity. 
 8 sieve sand, quicksand. Funnel, a sieve, gauze, so that children sieve sand to the child, 
 Sand treasure hunt. Small toys hidden in the sand, to guide their children to find out. 
 10 sand landscaping / objects. Sand shape like pattern, shape. Or try to build on the sand castles, mountains, a hole dug in the sand, the construction of the "highway" in the imagination. 

 [Note] 
 The sand should be as clean, the sun, when playing with water to maintain a certain humidity. 
 When playing with sand, do not rub the eyes, ears, etc. 
 Individual children playing with sand, allergic rash, do not play anymore. 
 [The benefits of play sand] 
 A sand children's favorite natural objects, and enable children to be great fun. 
 Play sand according to the wishes of the child's own random play, the development of intuitive action, thought and imagination. 
 3 Development of action. 
 Recognizing the name of a variety of toys 
 The sand is a natural, inexhaustible supply of game material. The early development of infants and young children in the perception of movement, the sand can provide a special feeling. Sand mobility, stepping up will sag, slide down from a height can grab a flow of sand through our fingers will give the children a special feeling. Sand load poured out "game, but also give the children add to the fun. Children through the sand shovel, both exercise fine hand movements and muscle strength, but also have a preliminary understanding of the relationship between the kegs, containers, and sand contents, especially upside down over the container filled with sand. When a shape will further enhance the understanding of the relationship of child care space. The age group of children through the heap of sand, shovel sand, ask Formosa and other sports can exercise the size of the hand muscles, improve physical fitness and coordination. The children of the age group by the shape of the freedom of unrestrained development of the child's creativity and sense of innovation. Sand rich in minerals, play sand is also of great benefit to improve children's resistance to disease. Meanwhile, in the process of playing with sand, the child will unconsciously understand the features of sand can increase the interest in scientific exploration. 
 Parents and children to play with sand to increase feelings accompany the children to play is also an ideal parent-child activities.