J61W-160P J61Y-320P J61Y-P54 170V 不锈钢对焊式针型阀 焊接式针型阀 不锈钢一次门，不锈钢二次门，电力用针型阀，耐高温 ，耐高压，耐腐蚀，质量好，经久耐用，主要型号有J61W-160P J61W-250P J61W-320P J63W-160P J63W-320P J61W-320R J61H-160P J61H-320P J61H-320R J63H-320P J63H-160P J61Y-160P J61Y-320P J61Y-320V J63H-320V J61Y-P54 170V J61Y-320I J61Y-320R 规格主要有DN6 DN10 DN15 DN20 DN25等，有一体式的，还有带散热片的，带穿板的等等，可以根据客户要求定做加工非标焊接针型阀。质优价廉