Currently Professional Black Steel frying pans (20cm and 24cm), as well as a 30cm stir wok and a 26cm grill pan, with the Zurich stainless steel forged handle, are sold with the famous brand Thermos throughout Taiwan. For more information please use the links below. Not only is there advice about which food you can cook with these pans, but Thermos even show which tests, with SGS, have been done to demonstrate the high quality of the black steel material.
20cm Professional Black Steel frying pan
http://www.thermos.com.tw/product/product.aspx?Cate=B0016&Item=648
For more information about Professional Steel fry pans, please read here.
24cm Professional Black Steel frying pan
http://www.thermos.com.tw/product/product.aspx?Cate=B0016&Item=649
30cm Professional Black Steel stir wok
http://www.thermos.com.tw/product/product.aspx?Cate=B0016&Item=650
For more information about Professional Steel stir woks, please read here, here and here.
26cm Professional Black Steel grill pan
http://www.thermos.com.tw/product/product.aspx?Cate=B0016&Item=651
For more information about Professional Steel grill pans, please read here and here.