As a petroleum machine and equipment manufacturer, tubing and casing pipe are main products of cangzhou yicheng steel pipe manufacture co., ltd. Astm f480 - 06be1 standards api 5ct oil casing pipe; petroleum casing pipe 1. Standard: api 5ct-0735 & grade: k55, j55, n80, h40, l80, m65, c90, c95, ... Are the products standards which we supplied according to. Tubing and casing that manufactured by us are using high quality carbon steel.
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