冷媒R142b/744/R728/R720超低温制冷剂 ¥450.00 巨化霍尼韦尔R407F /r410a/R507C制冷剂 ¥450.00 巨化霍尼韦尔R245FA 22.7KG制冷剂 ¥450.00 巨化科慕制冷剂R508B 8KG冷媒 ¥450.00 冷媒R704超低温制冷剂R-509A/508B ¥450.00 冷媒霍尼韦尔R455A/447B制冷剂 ¥450.00