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STOCK INVENTOY ( CS-CZ-ERW )...

Submerged arc welding area prone to defects such as stomata, hot cracks, and undercut. 1, bubble. Bubble occurred in the middle of the bead, the main reason is that hydrogen is still in the form of bubbles hidden in the weld metal inside, so the elimination of this defect is the first measure must be removed welding wire and weld rust, oil, moisture and moisture And other substances, followed by the need to dry the flux to remove moisture. In addition, to increase the curr...

In the rapid development of steel at the same time, the market some of the fake steel pipe products have also appeared, then how to correctly and accurately identify the quality of steel is good or bad? 1, the appearance of counterfeit steel pipe often pimple phenomenon. Ma face is due to the serious wear and tear caused by irregular steel surface uneven rugged defects. As the fake steel pipe manufacturers to pursue profits, often rolling rolling the most standard. ...

According to the manufacturing method can be divided into: sand centrifugal socket straight, continuous cast iron pipe straight pipe and the sand. According to the different materials can be divided into: gray cast iron, nodular cast iron and high silicon iron pipe. 1. Cast iron water pipe: The use of cast iron cast iron water pipe of No. 18 above by adding nodulizer, after centrifugal ductile cast iron pipe by centrifugal casting machine, the performance of ductile...

Cut wire is bright iron wire, fire wire, galvanized wire, coated wire, wire coating and other metal wire, according to customer requirements after straightening scale truncation. Product features: easy to transport, easy to use. Product uses: widely used in the construction industry, handicrafts, daily civil, and other fields. Product specifications: 8#-23# (wire diameter 0.6mm-4.5mm), the length is not limited. Can be customized according to customer specific r...

Note Q345 seamless pipe, the use rate is very high, but the general construction before the construction, the pipe, pipe fittings, rubber ring and so on to do an appearance inspection, found that there is a problem to give up the use of. 1. Q345 seamless tube cleaning moment: Bearing all the debris removal clean mouth. 2. Cleaning apron, apron: adhesive material on the apron clean up, put the ring bending "quincunx" or figure 8 into the socket slot, and hand along the...