Carbon and alloy steel: Marked by stamping

　　1. Carbon and alloy steel: Marked by stamping.

　　2. Stainless: Marked by electro-etched or jet printed or stamped.

　　3.3/8" under: Brand only.

　　4.1/2"to 4": Marked brand, material, heat no. B16(belong to ansi b16.11 product), pressure and size.

　　Finish: Galvanized or black(carbon), pickled(stainless).

　　Packing: Carton/wooden case.

　　We have a staff of 298,including 80 professional technicians,and our company covers an area of 160,000 square meters.In order to provide high quality,economically priced industrial tubes,steel flanges,and industrial pipe fitting,we have purchased testing equipment which is used for chemical analysis,water pressure testing,X-ray inspection,ultrasonic testing,eddy current inspection,tension testing,chemicaltesting,etc.We are also ISO9001:2000 approved.

　　We have adopted advanced production equipment and technologies to manufacture our carbon steel pipe fitting, which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.