Our product is portable and mechanical welder for PP-R tubular products and parts, which is applicable to thermal fusing socket joint of specifications of D16-160mm. This product is produced according to national standard of GB4706. 1-1998 for electric appliances and passed test of Provincial Technology Inspection Institute. The dimension of working mould cover is in conformity to German DTN8077 and DTN8078 standards so as to ensure best connection of tubular products and parts.