... .C; Main material:Meta-Aramid(Know as Nomex) CASTONG Long heat Sleeve BNF-52, resist temperature of 350 deg.C. The main ... the sewing thread use of he same material. This type Sleeve with general wearing style. For the elbow part, it’s ... . Meanwhile, this knee-cap has characteristics of fire-proof, no melt-drip, cut resistant, abrasion resistant, non-pollution, and in accordance with the ...