In No Particular Order
HANGZHOU ZHEZHONG CHAIN CO., LTD established in 2006, enjoyed a good quality of lifting chains with scientific management in this industry at home and abroad.
ZHEZHONG CHAIN had passed ISO certification and our products also with CE approved.
Z2 had also designed more than 7 kinds of dedicated devices so far, like Chain Calibrating Machine, Proof Test Machine, Cutting & Count Machine, Stamping Machine, Auto Chain Stacking Machine, etc. All of them are passed the national patent.
Now ZHEZHONG CHAIN aims to be the best chain manufacturer in China.
HANGZHOU RUBY IMP & EXP CO., LTD is specialized in supplying lifting, rigging, material handling & marine products since 2008. Our mission is to be the best products & service provider in this industry through dedication, commitment, and team efforts.
To ensure safety and meet customer satisfaction, Z2LIFTING always pays great attention to inspection and delivery. We not only supply in lifting area but also effort to help our customers grow and build safety and long-term business in their markets.

Donghua Chain Group
Core Products: Grade 80/100 lifting chains, stainless steel chains, hoist chains, port/container heavy-duty chains
Highlights: domestic chain manufacturer; 60+ yrs; Grade 100 TÜV-certified; 100,000 tons/year capacity; serves ports, cranes, mining; global export leader
Certifications: ISO 9001, ISO 14001, TÜV, CE, EN 818
Chenli Group
Core Products: Grade 80/100/120 high-strength lifting chains, alloy steel chains, slings, rigging hardware
Highlights: First Chinese CE-certified chain maker (2005); 35+ yrs; Grade 120 top-tier; wind energy/shipbuilding focus; 6 subsidiaries
Certifications: ISO 9001, TÜV, CE, EN 818, GB/T 20652
Juli Sling Co., Ltd.
Core Products: 8–100-ton lifting chain slings, high-strength alloy chains, offshore mooring chains, crane chains
Highlights: Largest sling manufacturer; 20+ yrs; automated production (pitch error ≤0.5mm); wind power/marine engineering; listed company
Certifications: ISO 9001, CE, ABS, DNV, GB
Qingdao Choho Industrial
Core Products: Grade 80/100 lifting chains, mining chains, hoist chains, heavy-duty transmission chains
Highlights: Listed high-tech enterprise; 30+ yrs; automotive/construction machinery supply chain; strict fatigue testing; 50+ countries export
-Certifications: ISO 9001, ISO/TS 16949, CE, TÜV
Shanghai Dalong Chain Works
Core Products: Oil rig lifting chains, Grade 100 heavy-duty chains, mining scraper chains, high-temperature resistant chains
Highlights: Century-old brand (est.1902); China's first oil rig chain; exclusive bid winner for Sinopec; PetroChina top supplier
Certifications: ISO 9001, API, CE, GB
Jiangsu Shuangyu Chain
Core Products: Grade 80/100 lifting chains, mine hoist chains, furnace chains, large-tonnage custom chains
Highlights: 30+ yrs industrial chain expertise; EN 818 compliant; mining/power plant focus; large-tonnage customization; stable delivery
Certifications: ISO 9001, CE, EN 818
Shandong Wanhui Mining Machinery
Core Products: High-strength lifting chains, elevator chains, slag remover chains, stainless steel chains
Highlights: Mining chain specialist; 8+ yrs; metallurgical/coal mine focus; wear/corrosion resistance; complete testing lab
Certifications: ISO 9001, SGS, CE, GB
Jiangsu Liqiang Heavy Industry
Core Products: Grade 100/120 ultra-high-strength lifting chains, alloy steel chains, fatigue-resistant chains
Highlights: Special material heat treatment tech; fatigue life >150,000 cycles; 40% export ratio; EU/US/SE Asia markets
Certifications: ISO 9001, CE, TÜV, EN 818
Hebei Jinding Chain & Sling
Core Products: Mine-used lifting chains, Grade 80 hoist chains, shipbuilding chains, heavy-duty slings
Highlights: Mining/shipbuilding niche leader; 20+ yrs; strict low-temperature impact test; coal mine/shipyard major supplier
Certifications: ISO 9001, CE, MA (Coal Safety)
