Kinhbac pipe fittings business thep.Saigon welding accessories, pressure fittings, threaded fittings. Materials ASTM A 234 WPB, carbon steel - stainless steel astm a403 wp304 / 304L, wp316 / 316L - Alloy steel ASTM A234 Nghe WP1, WP 5, WP9, WP11, WP12 ...
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