size：Φ3-Φ40
standard：GB/1220-92
Used in petroleum, electronics, chemical industry, medicine, textile, food, machinery, building, nuclear power, aerospace, military, etc
Particularly large-scale supply 201,202,301,304,316,310,304 L, 316L, 310S, 310L, 321,410,430 and other kinds of stainless steel straight.
