About Us

About Rivelong International

Founded in 1998 and based in Linzi District, Zibo, Shandong Province, we are a large-scale manufacturer of agricultural greenhouse film, with fixed assets of RMB 80 million and an annual output value of over RMB 100 million. Our factory is located next to Qilu Petrochemical Company, a major Chinese petrochemical enterprise. We are one of the main agricultural film manufacturers in Shandong Province.

Rivelong International is the sole authorized export company of Zibo Linzi Plastics No. 8 Factory, the manufacturer of Lvfan agricultural film. We handle quotations, documents and shipping for overseas customers.

Entrance gate of the film factory in Linzi District, Zibo, Shandong
Main gate of the factory in Linzi District, Zibo.
Tall red-and-white steel tower of a film blowing line with stairways and material hoppers
Our film blowing tower, with material hoppers at the base.

What we make

Premium PO film, diffused-light film, EVA anti-fog film, metallocene watermelon film and a full range of other agricultural films, sold under the Lvfan brand. Our five-layer co-extrusion equipment produces film up to 24 m wide.

Our commitment

Quality first. Integrity first. Customer first.

From our factory floor

Plastic film running vertically through a multi-storey steel tower on a blowing line
Film travelling up through the tower.
Stacks of packed agricultural film rolls with printed brand labels in the factory yard
Packed film rolls ready for dispatch.
A worker and a forklift handling pallets of packed film rolls beside a blue steel factory building
Handling packed rolls in the factory yard.

Quality and Test Reports

Every product is inspected before it leaves our factory. Lvfan agricultural film is a product that has passed inspection by the national quality and technical supervision authority, and is produced and tested in strict accordance with national standards.

In a municipal supervision sampling test, Lvfan agricultural polyethylene blown greenhouse film was tested by Zibo Municipal General Institute of Inspection and Metrology. The tested items conformed to GB/T 4455-2019, and no nonconforming item was found. Report No. JCQG202600063, issued 24 April 2026.

Test itemRequirementResult
Tensile strength, machine direction (MPa)≥ 1821.3
Tensile strength, transverse direction (MPa)≥ 1820.9
Elongation at break, machine direction (%)≥ 350621
Elongation at break, transverse direction (%)≥ 350912
Right-angle tear strength, machine direction (kN/m)≥ 70120
Right-angle tear strength, transverse direction (kN/m)≥ 70119
Initial drip time (s)≤ 420208
Thickness deviation: limit / mean (%)±28 / ±100 to +1.5 / 0
Cover page of a test report issued by Zibo Municipal General Institute of Inspection and Metrology
Test report cover, report No. JCQG202600063.
Test report page 1: sample details, standard GB/T 4455-2019 and the inspection conclusion
Test report page 1: sample information and conclusion.
Test report page 2: tensile, tear strength, elongation and initial drip time results, all passed
Test report page 2: test items and results.

The report applies to the sample tested, a 7850 × 0.065 mm film, batch of 10 January 2026. Printed third-party test reports are available on request.

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