Import Adjustable Steel Wire Cable Seal — Buy in Bulk from Supplier in China

The Adjustable Steel Wire Cable Seal from Shandong Yutong Commercial Trading Co., Ltd. is a tamper-evident security device designed for sealing railway cars, truck trailers, containers, international freight, and valve lockout applications. This seal uses a steel wire cable that threads through a zinc alloy or aluminium locking body, with the locking mechanism engaging at variable lengths to accommodate different closure diameters. The wire diameter and overall cable length are produced to custom order, allowing buyers to specify dimensions matched to their specific sealing points. Colour options include blue, green, yellow, or other custom choices, with laser-etched imprinting available for bar codes, sequential numbering, or alphanumeric codes. The product carries ISO 17712 certification, indicating it has passed independent testing for tensile strength and tamper resistance under that international standard for mechanical seals. Standard packing is 100 pieces per plastic bag and 1,000 pieces per export carton, which suits bulk procurement by freight operators and logistics companies.

The locking body is typically die-cast from zinc alloy or extruded aluminium, materials chosen for corrosion resistance and mechanical strength in outdoor and marine environments. The steel wire is generally zinc-plated or stainless steel, with diameters ranging from 1.5 mm to 3.5 mm in standard industry practice depending on the security grade required. Laser etching provides permanent, non-removable marking that survives weathering and abrasion better than printed labels. The ISO/PAS 17712 testing referenced in the supplier profile covers tensile pull force, shear resistance, and tamper evidence, though buyers should request the specific test certificate for their batch to confirm compliance level (Indicative, Security, or High Security). The adjustable design means one seal SKU can replace multiple fixed-length alternatives, reducing inventory complexity for large fleet operators. Typical breaking strength for this class of cable seal ranges from 800 N to 1,500 N, though exact values depend on wire diameter and alloy specification.

Railway operators, container shipping lines, trucking fleets, and customs bond warehouses are the primary buyers, using these seals to detect unauthorised access during transit and storage. The valve lockout application extends the market to oil, gas, and chemical facilities where regulatory safety requirements mandate physical isolation verification. Buyers should confirm with Shandong Yutong whether the ISO 17712 certificate is current and covers the specific wire diameter and body material they intend to order, as certification scope varies by product variant. Minimum order quantities and exact lead times are not stated in the source data and should be discussed directly with the supplier; the profile indicates general delivery in 5-7 working days for stocked items, with custom orders taking longer. Payment terms, Incoterms, and sample policies (free samples with buyer-paid freight) should be finalised before committing to volume orders.

Shandong Yutong Commercial Trading Co., Ltd. is headquartered at Wanda Office J2-503/504 in Jinan, Shandong Province, China, with postal code 250000. The supplier operates from a commercial office in Jinan rather than a manufacturing plant, though the source description references a factory located in Dezhou, Shandong Province. The trust tier is listed as "harbor", and both response rate and average response hours show 0.00, which indicates no response data is currently recorded for this supplier. The company profile describes itself as both a manufacturer and trading company with specialisation in security seals for over ten years, though the exact founding date is not stated.

The supplier emphasises OEM capability and direct factory pricing without middlemen, positioning itself on cost competitiveness against larger Chinese security seal manufacturers. It claims ISO 9001:2000 and ISO/PAS 17712 approvals for most products, though buyers should verify the current validity and scope of these certificates directly, as standards evolve and certificate numbers are not provided. The supplier offers free samples with buyer-borne express freight, accepts multiple payment methods including T/T, L/C, PayPal, Western Union, and credit card, and quotes general delivery of 5-7 working days for stocked orders. No information is given about annual revenue, employee count, export markets, or named clients, and these should not be assumed.