We custom-make heat-sealed block-bottom valve bags, FIBC bulk bags and laminated PP woven sacks for cement, chemicals, feed and food — factory-direct, ISO-certified, export-ready.
Block-bottom valve bags for 25–50 kg automatic packing, and FIBC jumbo bags for 0.5–3 ton bulk loading — both made in-house from PP extrusion to finished printed bag.
Our flagship packaging bag. Made from laminated PP woven tubing on German W&H and Convertex heat-seal lines — both top and bottom are heat-sealed with no sewing thread, so the bag sits flat on the pallet and feeds cleanly into fully automatic packing machines.
Flexible Intermediate Bulk Container (jumbo bag / ton bag) made from woven polypropylene, in round and square styles. Rated 0.5–3 ton per bag, most commonly 1 ton — for handling powder, granules and bulk materials by forklift or crane.
From cement to food-grade powders — our bags are engineered for the specific filling, stacking and transport needs of your product.
Heat-sealed block-bottom valve bags for 25–50 kg cement, dry mortar, gypsum and powder additives. Built for 60–120 bags/min automatic filling lines.
UV-resistant woven bags and FIBC bulk bags for NPK, urea, seeds and animal feed — durable enough for open-field storage and long-haul shipping.
Food-grade PP woven and laminated bags for flour, rice, sugar, salt and starch. PE liner optional for moisture-proof, food-safe packaging.
Anti-static Type C/D FIBC and laminated woven bags for chemicals, resin, powder coatings, minerals and metallurgical powders.
Extrusion, weaving, lamination, printing and bag-making under one roof in Lanxi Economic Development Zone — specs stay tight and lead times stay short.
Our 40,000 m² workshop runs 8 extrusion lines, 500 circular looms, 3 lamination lines and 2 printing lines, equipped with German Windmöller & Hölscher and Convertex heat-seal bag-making machines. From raw polypropylene to finished printed bags, every stage is in-house.
A nationally designated cement bag manufacturer with audited management systems and documented process control.
Named by the National Packaging Standardization Committee as a designated cement bag producer (valid through 2028).
State-recognized High-Tech Enterprise (cert. GR202233008986), with multiple utility-model patents on bag-making equipment.
ISO 9001 quality, ISO 14001 environment and ISO 45001 occupational health & safety management systems, audited by IAS.
"Made in Zhejiang" certification issued by SGS, plus AAA-grade enterprise credit and contract-honoring honors.
Registered business scope covers new-material tech services, import & export of goods, plastic product manufacturing & sales, building materials, and packaging printing — a fully licensed export supplier.
Our bags are supplied to major cement producers for 25–50 kg cement packing, on automatic filling lines.
Zhejiang Youwei New Materials Technology Co., Ltd. is a large-scale plastic weaving enterprise in Lanxi Economic Development Zone, Jinhua — specializing in block-bottom valve bags, FIBC bulk bags and PP woven sacks, integrating R&D, production and sales.
Integrated plant in Lanxi Economic Development Zone, equipped with 8 extrusion lines, 500 circular looms, 3 lamination lines and 2 printing lines.
Awarded the national High-Tech Enterprise certification (GR202233008986); industry-university cooperation with China Jiliang University.
Named a National Designated Cement Bag Manufacturer (valid to 2028); passed ISO 9001 / 14001 / 45001 management system audits.
Obtained "Made in Zhejiang" certification by SGS and AAA-grade enterprise credit honors; exports valve bags and FIBC bags worldwide.
Tell us bag type, size, grammage, printing, quantity and destination port.
We send a formal quotation within 24h. Free samples available for quality check.
Digital printing proof and physical sample approved before mass production.
Lead time 15–25 days after deposit. Full QC inspection before shipment.
FOB/CIF/DDP terms available. We track the shipment and follow up after delivery.
MOQ is typically 50,000 pieces per specification for custom printing. For blank/unprinted bags, MOQ can be as low as 10,000 pieces. Contact us for your specific requirement.
Yes, OEM/ODM is our core service. We support up to 6-color flexographic printing. Just send us your artwork in AI/PDF format, and we'll send a digital proof for approval.
Standard lead time is 15–25 days after deposit and artwork confirmation, depending on quantity and printing complexity. Rush orders are available upon request.
We accept T/T (30% deposit, 70% against B/L copy), L/C at sight for large orders, and trade assurance orders on Alibaba.
We hold ISO 9001, ISO 14001, ISO 45001, High-Tech Enterprise certificate, and "Made in Zhejiang" certification by SGS. Food-grade bags can be produced with food-contact grade PP resin.
Tell us your bag size, grammage, quantity and destination — we respond within 24 hours with a quotation and sample plan.