... tray of line equipment, a high-precision testing measuring instruments.Raw material include:Q235, 304, 316L, etc. Surface ... polish (stainless steel).About us:Shanghai Aifan Metal Co.,LTD. belongs to Shanghai Pangtong Enterprise Development Co.,LTD.,founded in 2005, is a ... cable tray of line equipment, a high-precision testing measuring instruments. Raw material include:Q235, 304, 316L, etc. Surface ...