99精品久久99久久久久_亚洲精品区_久久免费视频网_国产人妖乱国产精品人妖_精品国产欧美一区二区_亚洲精品日日夜夜_99青青草

Zhejiang Yongwang Welding Material Manufacture Co., Ltd. is one of the professional brazing material manufacturers in China. Ltd. is one of the professional manufacturers of brazing materials in China. It is committed to providing solutions to brazing problems by adhering to the needs of customers. The main products of the company are "Yongwang" brand series brazing materials, including: phosphorus copper brazing material, silver phosphorus copper brazing material, silver copper zinc brazing material, silver tin solder, and supporting brazing flux. The main specifications of brazing materials are: welding rod, welding wire, welding ring (shaped ring), thin strip, flat wire, etc.. The products are produced strictly with reference to national standards, and we provide various types of brazing materials that meet the requirements of AWS, DIN, JIS or other ...