PVC sheet is a kind of packing materials manufactured by calendering machines, it is characterized by high transparency, good surface luster, few crystal points, small water marks, strong impact resistance, and easy to form, it offers a potent chemical re
1. Fertilizer and chemical injection through drip and sprinkler irrigation systems.2. Select the appropriate specification of fertilizer Injector depend on the crop andirrigation area. Too big or too small maybe do nothing.