The way he carried her — gently, with reverence. The way he laid her on my examination table. What a moment of grace. They had joined my family practice a few years earlier. A spirited, adventurous, ...

为科研，生产用户提供高品质的设备，技术服务，不断追求共同发展，向社会分享更多我们创造的价值。 ASTM E162是美国应用泛的测试火焰传播性能方法之一,测试热源使用辐射板加热及煤气喷灯点燃。该方法被广泛应用于试验材料的火焰传播性能，该方法同样被 ...