hat
Stainles seri fe 400 materyèl ki anwo nan syèl la dureté ak fòs li genyen te konpare ak 300 seri, Temps, avantaj pri te konpare ak lòt fe en trè evidan.
eng
steel 400 series materials are of high hardness and strength compared with 300 series,Meantime,the price advantage compared with other stainless steel is very obvious.Standard: AISI, ASTM, DIN, EN, GB and JIS