A.0.2 B.0.4 C.0.6 D.1.2
A.0.2 B.0.4 C.0.6 D.0.8
A.法兰连接 B.螺栓连接 C.焊接 D.电熔合
A.酚醛 B.水玻璃 C.呋喃 D.环氧
A.1mm B.2mm C.4mm D.3mm