我和公激情中文字幕-午夜福利毛片-美女视频黄是免费-色5月婷婷-日韩性xxx-亚洲成色在线-欧日韩精品-日韩欧美资源-国产人成精品-黄色av电影网-日本加勒比综合

ZHEJIANG RENXING VALVE CO.,LTD was founded in 2004, is located in Oubei town, Wenzhou, which is well known as “Pump & Valve Town of China”. RENXING designs, manufactures and sells valve balls and other highly engineered ball valve components around the world. With strong innovation capacity and many years’ experience in manufacturing and management, RENXING has been providing a wide range of high quality products to the international market.

RENXING provides balls and other valve components to customers with various specifications from 1/2” up to 56”, pressures from 150LB up to 2500LB and different materials. The materials mainly include A105, LF2, 410, F6A, 4130, 4140, F304, F316, 17-4PH, F51, F53, F55, Monel, Inconel, etc. The surface treatment materials include Chemical Nickel Plating, Tungsten Carbide Coating, Stellite, Inconel etc, which are high-hardness, abrasion proof and corrosion-resistant materials.