... Broad Top Metalwork Co.,Ltd is one of the largest pipe-fittings and pipes manufacturers in Henan China. Our company ... 1993.Our products including flange, elbow, tee, reducer, pipe and pipe fittings have been exported to more than 20 countries, such ... , CLASS 2500European SeriesPN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400StandardHG20592, ASME16.5-2009, DIN2633 ...