急需，如下： Poly-propylene sacks for cement packing 聚丙烯水泥包装袋 Quantity required 5,000,000 sacks (five million sacks) 数量：500万只 TECHNICAL SPECIFICATIONS: 技术规范： The sacks are made of poly-propylene fabric Flexible, with heat welding technology. 袋子用可伸缩的聚丙乙烯构造物，应用热焊接技术。 Sacks made out of circular cylindrical poly propylene provided with valve in the form of hexagonal terminals. 袋子用圆柱形聚丙乙烯，阀口是六角形的闭口。 The sacks are laminated (coating) with complete layer from exterior part with suitable polymerized article. 袋子外部有完整合适的聚合物层。 The raw material granules must be brand new and not reused. 原材料必须是全新的、没有使用过的。 Capacity of the sack is 50 kg.+/- 0.2 kg. 袋子的容积：50kg+/-0.2kg. Breaking strength of coated fabric not less than 500N on slices of 5cm width. 外部编制物的破损力在5cm宽的部分上不能超过500N. T