poly bag 是什么?

poly bag 是什么? poly propylene bag 是什么袋子呢?有谁知道poly propylene bag 是不是编织袋?还是PP袋？ Poly bag,PVC bag,PE bag有什么区别? 求问1PC/POLY BAG poly poly corespun yarn 是什么原料 COTTON POLY是什么 roly-poly是什么 RNA poly I 是什么? POLY纱是什么材料 single in poly bag 16000 units是什么意思?single in poly bag 16000 unitsdouble in poly bag 17000units which is 50000units - 是什么意思? poly poly net fabric是什么面料 60%wool and 40% poly 是什么面料? poly urethane coating 是什么表面处理? 英语翻译I am looking for 4-inch (10.16cm) lay flat poly tubing (poly film/poly bag) in 52.5-foot (16m) rolls.The poly tubing (poly film/poly bag) must be 6-mil (152.4um) or 8-mil (203.2um) thickness and have a 1.25-inch (3.175cm) O.D.or smaller c 英语翻译2mil patch handle poly bag with clear plastic patch on inside of handle 涤纶纱线（英文）中文分别是什么30/1 Poly 100% Grey Non Virgin 30/1 Poly 100% Grey Semi Virgin 30/1 Poly 100% Grey Virgin BAG音标是什么