Zhejiang Guanyu Stainless Steel Tube Co., Ltd  
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Changzhou Pujiang Stainless Steel Pipe Co.,Ltd.








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CHANGZHOU PUJIANG STAINLESS STEEL PIPE CO., LTD. is located in Zhenglu Industrial Park, Wujin, Changzhou, Jiangsu. Zhenglu is a beautiful and economically developed town in Changjiang River Delta, one of “Top 100 Towns (Cities) in China". It is only 4 kilometers to the entrance of Shanghai-Nanjing Express Highway and Changjiang Coast Express Highway. The traffic is very convenient and the production environment is excellent.

The Company is a professional manufacturer of seamless stainless steel tubing. As a private joint equity enterprise, the Company has total assets of more than 80 million Yuan and covers an area of about 30000 square meters, including 23000 square meters of modern standard production workshops. There are 260 employees now and the staffs with college education or above take 25 % of them . The senior engineers from No.5 Plant of Shanghai Steel Group, Great Wall Special Steel are our long term production and management advisors.

After many years of production of seamless stainless steel tubing, in order to meet demand of ever changing steel pipe market, we made thorough market research and decided to carry out overall technical innovation, so we stopped old equipment and introduced state-of-the-art LG60 high speed long stroke continuous rolling mill production line, LD40, LG30 precision pipe rolling machines, and other cold rolling and drawing stainless seamless steel pipe production lines, as well as gas generator, bottom feed continuous annealing furnace, high precision straightening machines etc. The annual capacity is more than 6000 tons and the Company becomes a large stainless seamless steel pipe production base in China.

The standard product test center is equipped with ultrasonic test instrument, eddy current test machine, hydrostatic test machine, universal test machine, direct-reading spectrometer, chemical and mechanical analysis instrument etc. The Company adopts IS09001:2000 quality control system and the products are made strictly according to GB , ASTM , ASME , JIS , DIN and other relative standards, so as to guarantee sustainable and stable product quality.

With “people oriented” personnel management concept, advanced production equipment , complete fixtures and inspection facilities, solid technical forces, strict modern management , good reputation , well established service network, the high tech and competitive "di" stainless seamless steel pipes can meet the requirement of customers in many industries.

The Company takes the principle of "Quality first; Reputation in priority", sincerely welcome new and old customers all over the world to visit us for technical cooperation and business negotiation and for mutual bright future!

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Main Products:

BA Tube | AP Tube
Condenser Tubes Tubing
Stainless Steel Reheater Tube Superheater Tubes
Stainless Steel U bend Tube
Nickel Alloy U bend Tubes
Copper Alloy U Bend Tubes
Heat Exchanger Tube
Super Duplex Pipe
Nickel Alloy Tube
Brass Alloy Tubing
Copper Nickel Alloys Tubes
Stainless Steel Hollow Tube
Stainless Steel Oval Tubing
Stainless Steel Square Tubing
Stainless Steel Rectangular Tubing
Stainless Steel Capillary Tube
Duplex Stainless Steel Pipe
Seamless Stainless Steel Tubing
Corrugated Stainless Steel Tubing
Stainless Steel Twisted Tube
Polishing Stainless Steel Tubing
Stainless Steel Aircraft Tube
Stainless Steel Hydraulic Tubing
Stainless Steel Instrumentation Tubing
Stainless Steel Angle Iron Bar
Stainless Steel Mechanical Tube
Bright Annealing Stainless Tube
Heat resistant Stainless Steel
Stainless Steel Welded Pipe
Extruded Serrated Finned Tubes Integral Finned Tubes / Extruded Aluminum Finned Tubes
Brass Alloys Copper Nickel Alloy Integral Low Finned Tubes
HFW High Frequency Welded Helical Spiral Serrated Finned Tubes
Corrosion Resistant Stainless Steel
Corrosion Resistance Stainless Steel

Stainless Steel Tubing Pipe

304 Stainless Steel Pipe
304L Stainless Steel Pipe
304H Stainless Steel Pipe
304/304L Stainless Steel Tubing
309S Stainless Steel Pipe
310S Stainless Steel Pipe
316L Stainless Steel Tubing
316Ti Stainless Steel Tube
317L Stainless Steel Pipe
321 321H Stainless Steel
347 347H Stainless Steel
904L N08094 Seamless Tubes
17-4 PH 630 UNS S17400 Stainless Steel
253MA S30815 Stainless Steel Tube
S31254 254 SMO Pipe
S31803 Stainless Steel
2205 Duplex Pipe Tubing
S32101 Stainless Steel
S32304 Stainless Steel
2507 Super Duplex Pipe
S32750 Super Duplex Pipe
S32760 Super Duplex Steel
1.4462 Stainless Steel Pipe
ASTM A213 | ASTM A269
ASTM A312 | ASTM A511
ASTM A789 | ASTM A790
ASTM B161 / ASME SB 161 | ASTM B111
EN 10216-5
ASTM A789 ASME SA 789 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Tubes
EN 10216-5 1.4462 1.4362 1.4162 1.4410 1.4501 Seamless Tubes
Nickel Alloy Tubing:

UNS N08020 Alloy 20 Tubing
UNS N02200 Alloy 200 Tube
UNS N02201 Alloy 201 Pipe
UNS N04400 Monel 400 Tubing
N06600 Inconel 600 Tube
N06601 Inconel 601 Tubing
N06625 Inconel 625 Tubes
N08800 Incoloy 800 Tube
N08810 Incoloy 800H Tube
N08811 Incoloy 800HT Tubing
UNS N08825 Incoloy 825 Pipe
ASTM B622 N10276 C276 Tubing
ASTM B622 N06022 Hastelloy C-22 Alloy Tubes
C28000 Brass Seamless Tubes C44300 Brass Seamless Tubes
C68700 Brass Seamless Tubes
C70600 Copper Nickel Tubes
C71500 Copper Nickel Tubes
DIN 2391 Seamless Precision Steel Tubes
EN 10305-1 E215 E235 E355 Seamless Precision Steel Tube Tubing Tubes
DIN 2393 St28 St34.2 St37.2 St44.2 St52.3 Welded Precision Steel Tubes
EN 10305-2 E195 E235 E355 Welded Cold Drawn Precision Steel Tube