含紧一点h楼梯边做边走视频,久久久老熟女一区二区三区,丫头把腿开大让我添添视频,香港绝版无码老a片

What do you know about polyester masterbatch?

polyester masterbatch is based on polyester resin, and then mixed with carbon black or other colors of pigment extrusion, resulting in small particles used for dyeing other plastic products.

polyester masterbatch products have a wide range of colors, complete chromatography, black, extinction whitening, fluorescent whitening and a variety of colors, can be prepared according to the different requirements of customers.

Longkou Huachai Plastic Industry Co., Ltd. is a modern industrial enterprise integrating science and technology, production and sales, with strong technical strength, advanced equipment and full of vitality, specializing in the production of polypropylene masterbatch, polyamide masterbatch, polyester masterbatch, non-woven fabric masterbatch, plastic masterbatch, functional masterbatch, modified plastics, etc. It can be widely used in chemical fiber, non-woven fabric, injection molding, blow molding, extrusion and other industries.