A brand of Bingquanwa (Hangzhou) Technology Co., Ltd. · Product: WringCloud
We are dedicated to building large-file delivery platforms and secure transfer infrastructure. With encrypted transfer and Chinese national cryptographic algorithms (SM series) as the technical foundation, we take large files from "sent" to "delivered" — reliable arrival, collaborative collection, and long-term archiving — helping customers in finance, government, healthcare, manufacturing, and beyond break down data silos and achieve secure cross-network, cross-domain, cross-organization data collaboration.
Product System
Making every delivery controllable, trustworthy, and auditable
LAN Speed · Cross-Network Security
A large-file delivery platform for individuals and teams: LAN direct transfer, encrypted cross-network relay, workspace collaboration, collection management, and My Library — covering the complete delivery pipeline from sending and collecting to archiving.
Secure & Controlled · Ultra-Large Files · Full-Chain Audit
An enterprise-grade large-file delivery and exchange platform for organizations.
Why WringCloud
Compared with one-off transfer tools like CowTransfer and Wenshushu, and the large-file transfer capabilities of personal cloud drives like Baidu Netdisk, WringCloud completes the loop around "delivery" with collaboration, collection, archiving, and audit
vs One-Off Transfer Tools
Tools like CowTransfer and Wenshushu solve one-off transfers; on top of that, WringCloud adds project-based delivery, pre-delivery review, download status tracking, and transfer audit trails — built for teams that collaborate repeatedly and deliver per project, replacing the "temporary link + chase progress in the group chat" workflow.
vs Personal Cloud Drives
Personal cloud drives like Baidu Netdisk are built for personal storage, and their share links lack permission systems and audit capabilities. WringCloud bills by download traffic (¥1 = 2 GB) with no upload charges, provides cross-network end-to-end encrypted secure relay, tiered member permissions in workspaces, unified external collection, and fully auditable operations — the more professional, reliable choice for large-file delivery.
Mission & Vision
Rooted in security, built on trust — letting enterprise data create value in motion
Our Mission
Centered on encrypted transfer and Chinese national cryptographic algorithms, we build trusted data transfer channels for enterprises, ensuring confidentiality, integrity, and traceability as data moves across networks and domains — so every transfer stands up to audit.
Our Vision
We are building an enterprise-grade secure transfer system covering every scenario — from cross-network file exchange to inter-organizational data collaboration — making WringCloud the first choice for enterprise data transfer and trusted data flow.
Core Capabilities
Deep expertise in secure transfer fundamentals, building trusted, compliant, and efficient data-flow infrastructure
Full support for Chinese national cryptographic algorithms — SM2 (asymmetric encryption), SM3 (hash digest), and SM4 (symmetric encryption) — meeting domestic compliance requirements and aligning with MLPS and commercial cryptography assessment standards.
SM CompliantPeer-to-peer direct transfer uses WebRTC DTLS end-to-end encryption, with data flowing only between sender and receiver; cross-network relay uses full-chain HTTPS encryption plus SM3 integrity verification to meet enterprise data confidentiality requirements.
A self-developed cross-network relay protocol with NAT traversal and P2P fallback, adapted to government and enterprise isolated networks and complex dedicated-line environments.
Traceable full-chain transfer logs, with operation auditing and tiered permission controls, meeting MLPS and financial regulatory compliance requirements.
A distributed cluster architecture scales horizontally; a single cluster handles thousands of concurrent tasks, with intelligent load balancing keeping peak hours stable.
Large files transfer in chunks and resume automatically from breakpoints after network interruptions; persisted state continues even after the page closes, ensuring reliable delivery of ultra-large files.
Real-time network quality monitoring picks the optimal transfer path automatically — P2P direct first, relay as fallback — keeping cross-region transfers fast and stable.
Temporary chunks are wiped from servers immediately after transfer completes, and relay nodes support no persistent storage — eliminating data-leak risks at the architectural level.
Industry Solutions
Industry-specific secure transfer solutions for highly regulated, high-security scenarios
Secure cross-network transfer of reconciliation files and settlement data, meeting strict financial regulatory demands for data confidentiality and audit.
Cross-domain data exchange and official document circulation, adapted to government intranet/extranet isolation, with SM compliance and permission controls.
Secure sharing and cross-institution transfer of medical images and records, protecting patient privacy and data compliance.
Cross-region collaborative transfer of design drawings and process data, keeping core intellectual property secure across the supply chain.
Our Values
Security first, compliance trusted, openness shared
Data security is a non-negotiable bottom line; encrypted transfer and SM algorithms are our defaults, not options.
Meeting enterprise compliance and audit requirements is our baseline; with support for SM standards, every data flow stands up to scrutiny.
Embracing open standards to build a trusted, sustainable data-flow network together with enterprise customers and ecosystem partners.
Whether you are in finance, government, healthcare, or manufacturing, we deliver enterprise-grade secure transfer solutions tailored to your business scenarios, with full support for SM compliance. Contact our sales team to book a one-on-one consultation.