Introduction

The thick heavy duty bag , Just as its name implies ,it have big size, with flat bottom. Generally, it is used to contain high volumn and heavy goods, requires high strength. So it is usually made of LDPE, single layer film thickness is more than 20micron, like construction garbage bag, sanitation garbage bag ,garment fabric packing bag.
But also have some big size bag is made of HDPE, because it not requires high strength, but just used as a cover or protecting film. Such as bags for furniture dust protection, hanger bag, sanitation garbage bag, table cover.