1. Substandard Raw Materials & Cost Cutting

Though inferior steel fasteners look identical to genuine products on the surface, they feature coarse internal grain structures and fail to meet specified tensile strength requirements. When under tension and load, they snap instantly — a split second that can cost lives.

2. Falsified Test Reports

Unscrupulous suppliers forge tensile test reports and material certification sheets. A single fake certificate of conformity is enough to fool purchasing staff.

3. Price-Only Procurement Without Proper Verification

Buyers who select suppliers solely based on low prices, without verifying production qualifications or conducting on-site factory audits, plant a ticking time bomb for the entire project.

TIANJIN YIYUN RIGGING CO.,LTD We embed safety into every hidden detail.

Strict Control at the Source of Raw Materials

We exclusively source special alloy steel from certified large-scale mills. Each batch of steel comes with the original mill quality warranty. A secondary spectral inspection is carried out before warehousing to prevent scrap steel or mixed inferior metal from entering production lines.

No Compromises on Any Production Process

Both lifting rings and high-strength bolts are integrally forged. Full quenching and tempering heat treatment procedures are implemented in strict accordance with standards, with no shortcuts taken in heating, heat preservation or cooling stages. All products fully meet standards for tensile strength, fatigue resistance and impact resistance.

Authentic Test Reports for Every Batch

We operate an in-house mechanical testing laboratory equipped with universal tensile testing machines and flaw detection equipment. Samples from each batch undergo breaking load tests and non-destructive testing. Traceable, genuine factory inspection reports are issued — we firmly reject any form of report falsification.

Transparent Factory, Welcome On-Site Audits Anytime

Our production workshops, quality inspection lab and raw material warehouses are fully open to clients. On-site sampling and live tensile tests are available upon request. Transparent manufacturing lets customers witness product quality firsthand, instead of relying solely on documents.

Safety Leaves No Room for "We’ll Do Better Next Time"

Never trust inspection reports of unknown origin, nor sacrifice supplier factory audits for marginal cost savings.

To protect your corporate reputation from risks caused by counterfeit certifications, we recommend verifying all lifting gear and lifting point certificates via official systems prior to purchase.