zrqpqqk.cn-无码精品尤物一区二区三区,国产精品视频免费播放,亚洲精品亚洲人成在线,国产精品系列一区二区三区

Million tons of large-diameter seamless steel

pipes are exported to 32 countries and regions

Dexin Steel Tube (China) Co., Ltd., founded in 2002, We can manufacture and supply seamless steel pipes with OD 1/8"(10.3mm)-56"(1422.4mm) and wall thickness below 5.91"（150mm) according to ASTM/ASME、DlN/EN、BS、JlS、GOST、GB standard and customers’special requirements .