Import Bitumen Kraft Paper Bag — Buy in wholesale FOB from Supplier in China

Sichuan Groupeve Co., Ltd manufactures bitumen-lined kraft paper bags designed for heavy-duty industrial packaging, with the bitumen coating providing moisture barrier properties and structural rigidity for hygroscopic or oily bulk materials. The construction combines unbleached kraft paper outer plies with an internal bitumen laminate layer, creating a composite material that resists water vapour transmission and minor surface abrasion during handling. Standard paper basis weights for this product category typically range from 80-120 gsm outer ply with 30-50 gsm bitumen coating, though the supplier does not state exact grammages. Bag dimensions are offered in custom sizes rather than fixed stock dimensions, suggesting production-to-order manufacturing from roll stock.

The bitumen impregnation or lamination process determines critical performance: hot-applied bitumen saturation creates a seamless moisture barrier, while extruded bitumen film lamination offers more uniform coating thickness control. Kraft paper used in this application is typically 70-100 percent virgin fibre with minimum 30 percent post-consumer content for standard grades; the supplier claims biodegradable and recyclable properties, which buyers should verify against actual compostability certification and local recycling stream acceptance for bitumen-contaminated paper. Stitching or pasted bottom closure methods are typical, with valve or open mouth configurations depending on filling equipment; the supplier does not specify closure type or sewing thread material (polyester or cotton).

Target industries include construction materials (cement, lime, joint compounds), agriculture (grain, seed, feed), and general manufacturing bulk solids where moisture protection during tropical or monsoon transit is essential. The bags suit automatic filling lines with rated throughput of 800-1,200 bags per hour, though compatibility depends on exact dimensions and valve geometry. Bitumen-lined bags are not typically used for direct food contact applications; buyers in food-adjacent markets should request migration testing and compliance statements. Trade terms mentioned include FOB and CIF, with flexible MOQ; the supplier states ISO and SGS certification without detailing scope or certificate numbers.

Sichuan Groupeve Co., Ltd is located at No.399 Fucheng Avenue West Section, Chengdu 610041, Sichuan Province, China. The supplier holds an imported tier and harbor trust tier classification in the marketplace system. No response rate or average response time data is available, indicating no recorded inquiry history. The company profile does not state founding year, factory floor area, number of employees, annual production capacity, or revenue figures.

The listing presents the supplier as a manufacturer rather than trader, but does not specify whether production is in-house or contracted. No named clients, export markets, or case references are provided. The ISO and SGS certifications mentioned lack standard numbers, scopes, or validity dates. Buyers should request factory audit reports, quality management system certificates (ISO 9001:2015 scope), and specific SGS test reports for the bitumen kraft paper bag product line before placing trial orders anonymized. The address places the supplier in Chengdu's high-tech development zone, suggesting potential access to packaging material suppliers and logistics corridors through Chongqing or Shanghai ports.