D941X-16C DN250电动法兰蝶阀 碳钢法兰式蝶阀 参数尺寸
304/316不锈钢法兰旋启式止回阀H44W-16P大尺寸DN250 300 350 400
304/316不锈钢法兰旋启式止回阀H44W-16P大尺寸DN250 300 350 400
304/316L不锈钢法兰立式止回阀H42W-16P DN250 300 350 400大尺寸
304/316L不锈钢法兰立式止回阀H42W-16P DN250 300 350 400大尺寸
304/316不锈钢法兰旋启式止回阀H44W-16P大尺寸DN250 300 350 400
304/316L不锈钢法兰立式止回阀H42W-16P DN250 300 350 400大尺寸
。304/316不锈钢法兰旋启式止回阀H44W-16P大尺寸DN250 300 350 4
304/316不锈钢法兰旋启式止回阀H44W-16P大尺寸DN250 300 350 400
304/316L不锈钢法兰立式止回阀H42W-16P DN250 300 350 400大尺寸
304/316L不锈钢法兰立式止回阀H42W-16P DN250 300 350 400大尺寸
304/316不锈钢法兰旋启式止回阀H44W-16P大尺寸DN250 300 350 400
。304/316不锈钢法兰旋启式止回阀H44W-16P大尺寸DN250 300 350 4