ASTM A519 4140 Seamless steel Pipe/Tube Katalor ...
ASTM A519 4140 seamless steel pipe/tube for high pressure boiler, low and medium pressure boiler, structure purposes, for liquid service, for Diesel engine, for hydraulic pillar service, casing and tubing for oil well, A519 4140 seamless steel pipe for use as line pipe, for petroleum cracking, for high pressure chemical fertilizer equipments, for ordinary uses.