... , 316/316L, 300, 301, 202, 201, 409/410 The stainless steel of 304 and 316 are widely used in the petroleum ... industry, chemical fiber, chemical fertilizer, boiler, nuclear, electricity, astronautics, aviation, transportation, highway, biological medicine, and so on. And we can make ... many kinds of stainless steel pipes with different standards, such as YB, ASTM, DIN. We ...