我公司还可生产各种日标、德标、美标、英标、国标法兰盘、法兰盖及不锈钢法兰盘、法兰盖。
Our company can produce a variety of standard and Japan , Germany and S , American Standard , the British standard , national standard flange , flange and stainless steel flange covers , cover flange .
国标法兰