reducing flange meaning in Chinese

减径法兰
渐缩突缘
异径法兰

Marine welded brass pipe reducing flanges
船用焊接异径铜法兰
Inserts , self - locking , with mj threads , reduced flanges , closed type , in metallic material , coated or uncoated - dimensions
覆层的或未覆层的金属材料制的封闭式小尺寸法兰缘mj螺纹自锁衬套.尺寸
Interference may also occur when butterfly valves are bolted directly to the outlet flange of a swing check , silent check , or reducing flange
当蝶阀直接通过螺栓连接到旋启式止回阀、静音止回阀或缩径法兰的外法兰上时，也可能发生阀瓣受到影响的情况。