Clear Flat bag is made from Food Grade Virgin material. environmentally friendly and hygienic. They are water-proof, Moisture-proof, strong toughness, tear resistance, good for storage and usually for packing sugar, biscuits, candy, coffee bin, fruits , drinks or other foods. Normally width from 3 inch to 12 inch. Length from 7 inch to 22 inch. Material could be in HDPE or LDPE.
Clear Flat Bags, Polyethylene Flat Bags, Clear Flat Polyethylene Bag, Side Seal Bag, Clear Bag, Crystal Clear Side Gussets Bags BILLION PLASTIC MANUFACTURING CO.,LTD, JIANGMEN , https://www.jmfoodpackagingbag.com
The Pingshuo development method is a method of exploiting the ore body with Pingyi. Usually, as long as the terrain permits, it is reasonable to use all of the deposits to develop all, most or part of the deposit, so it is widely used. In China's tungsten mining, the vast majority of mines use Pingyi to develop. Compared with the development of shafts, inclined shafts and slopes, the construction method and construction equipment are simple, the tunneling cost per unit length is low, and the construction speed is fast; the mining system is simple, the large equipment is small, the investment is low; the production is safe and reliable. The potential capacity is large, the investment in expansion and expansion is small, the effect is quick; the drainage is self-flowing; the management is simple and the operating expenses are low. However, this type of development method is only applicable to deposits where the ore body is above the erosion base of the mountain area or hilly area.