應用
用于從分配設備向機動車輛輸送計量的液化石油氣(LPGs),軟管在-40℃～+60℃范圍內(濕態)使用，即永久性充以液體。
執行標準
膠管執行GB20689標準。
外觀
外表黑色，有光面(306D)或布紋（306DW）.
Application
Used to deliver metering liquefied petroleum gas (LPGs)from distribution equipment fo vehicle.The hose isused within-40℃～+60℃ (wet state),that is,permanently filled with liquids.
Applicable Standards
Rubber hose according to Standard GB 20689.
Appearance
Visually black,with polish 1306D)or wove pattern （306DW）.
結構特性
膠管由耐液化石油氣的內膠層、編織增強層、耐天候的外膠層組成。
306D-1型膠管以纖維線增強，并編纏導電銅線；
306D-2型膠管以鋼絲編織增強。
Structural Characteristics
The rubber hose consists of inner layer resistant to liquefied petroleum gas,braided reinforcement layer,andweather resistant outer layer.
Rubber hose 306D-1is reinforced by polyester wires and braided with conductive copper wires.
Rubber hose 306D-2 is braided and reinforced with steel wires.
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