The weld forms are different: the weld between the neck flat welding flange and the flange is fillet weld, while the weld between the neck butt welding flange and the pipe is circumferential weld;
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Wenzhou Jama Trade Co., Ltd: China professional shoes manufacturers and suppliers. Factory wholesale casual women shoes, men shoes and kids shoes. Custom shoes with own logo.
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As one of the most professional glass fiber air filter element manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized glass
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