该认证目录收录天然制冷剂制造商、供应商、分销商、承包商及顾问。可查找使用CO₂（R744）、氨（R717）、碳氢化合物（R290、R600a、R1270）和水的公司。
【英文原文】
原标题：Natural Refrigerants Suppliers, Manufacturers & Contractors — Verified Directory
The verified list of natural refrigerant manufacturers, suppliers, distributors, contractors and consultants. Find companies working with CO₂ (R744), ammonia (R717), hydrocarbons (R290, R600a, R1270) and water.
