應用
產品應用于汽車空調系統或其他制冷系統，膠管具有可靠的承壓能力；對R-134a制冷劑有優良的耐
腐蝕性能。適用于輸送R-134a制冷劑。
執行標準
膠管執行SAEJ2064標準，符合GB/T20025.2及QC/T664標準要求。
外觀
外表黑色，有光面(307)或布紋（1307W）。
Application
The product is applied to automofive air-condlitioning system or other refrigerating system. The rubber hose has reliable ability to withstand pressure and good resistance against the corrosion of R-134a refrigerant. It is suitable to delver R-134a refigerant.
Applicable Standards
Rubber hose according to Standard SAE J2064, conforming to Standard GB/T20025.2 and QC/T 664.
Appearance
Visually black with polish (307) or wove pattermn (307W).
結構特性
膠管由尼龍合金內襯層、內膠層、纖維增強層和耐天候的外膠層組成。
307E型管壁較薄，307N型管壁較厚，307H型管壁加厚。
Structural Characteristics
The rubber hose consists of nylon alloy interlining, inner rubber layer, fiber reinforced layer, and weatherresistant outer layer. The wall thickness of 307E hose is lower, while the wall thickness of 307N, 307H hose is higher.
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