I works on oxygen absorbar★&desiccant★&bamboo charcoal ect fine chemicals products more than ten years .I have abundant express on this kind products .I know very well how to help our customer to choose our products to match their products★ .I provided my product knowledge to help our customer save money . I have abundant supplier chain to meet different customers’s requirement on packing bag .I have abundant product knowledge .I can provide professional service and quickly response .I serviced more than ★50 Large food factories or importer . During I servise them ,their turnover is growing quicklyI am very in patience ,kind and professional .