# Zir•zhongrun (@zirzhongrun) on tiktok

- id: koinon:creator:tiktok_zirzhongrun
- url: https://koinonlink.com/kol/tiktok/zirzhongrun
- schema_version: 1.4

## Identity
- platform: tiktok
- handle: zirzhongrun
- platform_url: https://www.tiktok.com/@zirzhongrun
- entity_type: creator
- person_id: Cross-platform identity not resolved for this creator.

## Reach
- followers: 18719
- following: 333
- posts_observed: 1
- verified: false
- size_tier: koc

## Engagement
- status: not_collected
- status_note: Engagement has not been collected for this creator yet. This is a gap in our collection, NOT a statement that the creator has no engagement. Follower count is known, so it is measurable.
- unit_note: engagement_rate and peak_post_engagement_rate are ratios (0-1); avg_interactions_per_post and best_post_interactions are absolute counts. Read status before reading any number: a null rate has several different causes and status says which one applies here.

## Content
- category: ecommerce
- subcategory: supply
- category_confidence: 0.95
- category_source: derived_from_recent_content
- topics: Zirtools/Zhongruntools液压压床和底盘工具, 奔驰W167、丰田陆巡、特斯拉后羊角衬套拆装教程, 30吨/50吨液压机及脚踏式压床演示, 转向节轴承拆装工具和控制臂衬套工具套装
- bio: @zirzhongrun 18.7k Followers, 333 Following, 101.3k Likes - Watch awesome short videos created by Zir•zhongrun

## Audience (inferred)
- status: present
- description: Automotive repair technicians, auto shop owners, and suspension repair specialists who primarily purchase professional hydraulic tools and vehicle-specific bushing removal/installation equipment
- roles: none
- seniority: practitioner
- pain_points: Lack of specialized tools makes removing and installing suspension bushings on vehicles like Mercedes, Toyota, and Tesla difficult and prone to part damage, Standard tools can't handle high pressure or provide precise alignment, leading to longer repair times and high rework rates, Commercial hydraulic presses and 111-piece tool sets are expensive and don't match specific vehicle suspensions, Need reliable domestic professional equipment as a cost-effective alternative to expensive imported tools
- posts_analysed: 40
- confidence: 0.75

## Commercial (inferred)
- audience_buyer_fit: 0.2
- promotion_intent: 0.3
- open_to_collaboration: false
- contact: Koinon does not publish creator contact details.

## Quality signals
- authenticity_score: 48
- authenticity_basis: profile_shape_only
- credibility_score: 48
- flagged_for_review: false
- koinon_bd_grade: C — measures Koinon partner-outreach fit, not creator quality
- interpretation: Signals for triage, not verdicts. A flag means the profile is worth a manual check.

## Evidence
- [tiktok_zirzhongrun#6c3d1394] Zhongruntools Zirtools #zhongruntools #Zirtools Tutorial on Using a Car Chassis Steering Knuckle Bearing Removal Tool (https://www.tiktok.com/@zirzhongrun)
- [tiktok_zirzhongrun#2a9b0cd8] original sound - zirzhongrun
- [tiktok_zirzhongrun#1e62a75d] It is a becoming a big trend on TikTok now! Click here: zhongruntools
- [tiktok_zirzhongrun#7a807d12] Check out Zir•zhongrun’s video! #TikTok >
- [tiktok_zirzhongrun#6b7e645e] Search:
- [tiktok_zirzhongrun#dfe58dac] zir tools
- [tiktok_zirzhongrun#c6cda16c] Zhongruntools #zhongruntools #Zirtools ##zirtools Replacement tool kit for Mercedes-Benz W167 chassis lower control arms Hydraulic tools for automotive chassis repair
- [tiktok_zirzhongrun#744a43c6] #Zirtools #zhongruntools zhongruntools Zirtools Tutorial on Using the 111-Piece Tool Kit for Removing and Installing Mercedes-Benz W167 Lower Control Arm Bushings

## Provenance
Every inferred field below carries how it was produced. Facts stay facts; inferences stay inferences.

- audience.description: source_type=ai_inferred, confidence=0.75, freshness_days=65, method=llm_persona_from_recent_content
- audience.roles: source_type=ai_inferred, confidence=0.75, freshness_days=65, method=llm_persona_from_recent_content
- audience.seniority: source_type=ai_inferred, confidence=0.75, freshness_days=65, method=llm_persona_from_recent_content
- commercial.audience_buyer_fit: source_type=ai_inferred, confidence=0.6, freshness_days=65, method=llm_scorer — Relative signal within Koinon indexing, not a market-wide score.
- commercial.promotion_intent: source_type=ai_inferred, confidence=0.6, freshness_days=65, method=llm_scorer
- quality.anomaly_flags: source_type=heuristic, confidence=0.5, freshness_days=65, method=profile_snapshot_and_engagement_ratio_heuristic — Means "worth a manual check", NOT confirmed fraud. Flags can be wrong and are not a verdict about the person.
- quality.authenticity_score: source_type=heuristic, confidence=0.25, freshness_days=65, method=Profile-shape heuristic from a single snapshot (follower count, following ratio, account age, posting volume, verification), reduced for engagement red flags where post engagement was collected. Where only a follower count is available the score saturates at 58. — The input set differs by platform; do not compare this score across platforms.
- quality.koinon_bd_grade: source_type=ai_inferred, confidence=0.5, freshness_days=65, method=llm_partner_fit_classifier + fit_score >= 0.6 AND authenticity >= 60 => A; fit_score >= 0.4 AND authenticity >= 45 => B; else C. authenticity < 30 or a promotional-pattern flag => quarantine. — Koinon partner-outreach fit, not creator quality.
- reach.followers: source_type=observed, confidence=0.95, freshness_days=65, method=platform_profile

## Freshness
- profile_checked_days_ago: 65
- content_analysed_days_ago: 65
- audience_updated_days_ago: 65

## AI retrieval
- indexing_requests: 9
- user_triggered_requests: 0
- note: Being indexed in bulk is not the same as being retrieved to answer a question.

## This profile
- Claim or correct: https://koinonlink.com/claim?k=tiktok_zirzhongrun
- Request removal: https://koinonlink.com/claim?k=tiktok_zirzhongrun
- Terms: https://koinonlink.com/for-ai