استادبولت و مهره

STUD BOLTS & NUTS پیــچ و مــهره Alloy steel Bolting material for high temperature service :Specification ASTM A193 B7 , B7M, B8 , B8M Carbon & Alloy Steel Nuts for Bolts for high pressure & high temperature service :Specification ASTM A194 GR2H , 2HV, 8,8m برخی محصولات ما استادبولت و…