Name Grade Standard stainless steel pipes( seamless& welded) AISI304/ 304L, AISI321, AISI316/ 316L, etc. GB ASTM JIS DIN GOST. Alloy steel pipes NS111, Incoloy800, Monel400, Hastelloy 904L, ....
forever-metal group from korea more than 10years. Which own joint-venture factories in korea and china. also as a top agent of China Bao steel, China TISCO Steel, China aluminum, POSCO steel, China....
A film of figure designed onto the surface of Mirror, H/ L, # 8, # 4 or other product and is exposed to light on silkscreen. Ink is applied onto it, ferric chloride sprayed, selectively corroded, ....