... , 14cm, 16cm, 18cm, 20cm, 22cm, 24cm, 26cm-100cm4. Packing Detail: Packed with carton5. Thickness: About 5mm-10mm6. Mulching Disc ... , Natural, Organic, Biodegradable;Certificate of CO and Form A CERTIFICATE OF ORIGIN ( CO) and GENERALIZED SYSTEM OF PREFERENCES CERTIFICATE ... Germany, UK, Italy, Japan, and 20 other countries; Xiamen green field Co., LTD with more than 8 year's experience in manufacturing ...