42CrMo Hydraulic Cylinder Hollow Piston Rod Hard Chrome Plated Steel Bar Neutral Salt Spray test 500 hours CHEMICAL COMPOSITION Material C% Mn% Si% S% P% V% Cr% Ck45 0.42-0.50 0.50-0.80 0.04 0.035 0.035 ST52 0... قراءة المزيد
42CrMo Hydraulic Cylinder Hollow Piston Rod Hard Chrome Plated Steel Bar Neutral Salt Spray test 500 hours NSS( Salt Spray test )Testing Standing une-en iso9227:2017 · Sal solution: 50 (+/- 5) g/l of NaCl. ... قراءة المزيد