Import Cng Cylinder — Buy in Bulk from Supplier in China

The CNG cylinder supplied by Qingdao Baigong Industrial And Trading Co., Ltd. is a high-pressure storage vessel designed for compressed natural gas, constructed from seamless steel with a working pressure rating of 200 bar. The cylinder’s design conforms to ISO 11439 and DOT 3AA standards, with wall thickness calibrated to withstand cyclic pressure fatigue. Dimensions are standardized to common automotive and light commercial vehicle retrofit kits, with typical lengths between 800mm and 1200mm and diameters ranging from 250mm to 350mm depending on capacity.

The material is typically carbon manganese steel with a tensile strength above 750 MPa, selected for its resistance to hydrogen embrittlement under long-term gas exposure. Surface treatment includes internal phosphating and external epoxy powder coating to inhibit corrosion. These cylinders are available in water capacities from 45L to 120L, with thread connections matching ISO 10297 or SAE J1127 standards. While the listing confirms compliance with ISO and DOT, it does not specify whether cylinders are stamped with serial numbers or batch traceability codes, which are standard in certified production.

These cylinders are primarily sourced by automotive retrofitting firms, fleet operators in public transit, and industrial gas distributors in Southeast Asia and the Middle East. Buyers typically order in batches of 50 to 500 units, with packaging in wooden crates or steel pallets to prevent damage during sea freight. Trade terms offered include FOB Qingdao and CIF destination ports, with payment via T/T or L/C. Lead time is not stated but typically ranges from 25 to 40 days after deposit confirmation.

Qingdao Baigong Industrial And Trading Co., Ltd. is registered in Licang District, Qingdao, Shandong, with a physical address listed on public trade records. The company is classified as an imported supplier with harbor trust tier, indicating verified export documentation and customs clearance history. There is no public information on manufacturing capacity, workforce size, or years in operation. The listing confirms no direct factory ownership but implies sourcing from certified Chinese producers in the Shandong region.

The supplier’s response rate and average response time are recorded as zero, suggesting limited or no direct buyer communication capability on the platform. This does not reflect on product quality but indicates buyers must rely on documentation and third-party verification. No certifications, client lists, or production photos are provided in the listing. Buyers should request independent inspection reports before large orders.