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| 海華冷暖氣工程公司 | P & J SERVICE CO. | SAN JOSE | (408) 926-3688 |
| RICH AIR CONDITIONING & HEATING | Cupertino | (408) 973-8470 | |
| SCHAUMANN AIR CONDITIONING HEATING & PLUMBING, INC. | San Jose | (408) 986-9044 | |
| RISING STAR HEATING & AIR, INC | San Lorenzo | (510) 278-1975 | |
| 茂華工程公司 | ASSOCIATED ENGINEERING & CONSTRUCTION | SAN LEANDRO | (510) 357-5729 |
| 麟躍雪房製造冷暖氣系列 | YENLIN LI CO. | Oakland | (510) 534-4296 |
| 全空調冷暖氣製造廠 | ALL AIR MECHANICAL COMPANY, INC | S. SAN FRANCISCO | (650) 615-0248 |